Basic Physics Questions and Answers

The compressibility of water is 46 4 x 10 atm This means that 1 the bulk modulus of water is 46 4 106 atm 2 volume of water decreases by 46 4 one millionths of the original volume for each atmosphere increase in pres 3 when water is subjected to an additional pressure of one atmosphere its volume decreases by 46 4 4 When water is subjected to an additional pressure of one atmosphere its volume is reduced to 10 6 of its orig volume

30 Then angle of shear is 1 12 2 0 12 3 1 2 4 0 012 A 2m long rod of radius 1 cm which is fixed from one end is given a twist of 0 8 radians The shear strain developed will be 1 0 002 2 0 004 3 0 008 4 0 016

1 10 5 cm In biprism experiment 1 extended 1 2 12 cm the light source is 2 narrow 3 13 cm 3 polychromatic 4 14 cm 4 all of above

A diffraction is obtained by using a beam of red light What will happen if the red light is replaced by the blue light 1 Bands will narrower and crowd full together 2 Bands become broader and further apart 3 No change will take place 4 Bands disappear OFCC for the first minimum due to Fraunhoffer diffraction with sources of light of wave

What is the effect on Fresnel s biprism experiment when the use of white light is made 1 Fringe are affected 2 Diffraction pattern is spread more 4 none of these 3 Central fringe is white and all are coloured 15 TO for

A zero order reaction has initial concentration of reactant 0 1 M and rate constant 0 002 mol L s Left concentration of reactant after 30 seconds is O 0 02 M O 0 08 M O 0 04 M 0 03 M

cm Two slits in Young s experiment have widths in the ratio 1 25 The ratio of intensity at the maxima and minima in the interference pattern NEET 2015 max 1 min IS 49 2 121 3 At the first minimum adjacent to the central maximum of a single slit diffraction pattern the phase difference between 121 49 4

A 50 kg motor rests on four cylindrical rubber blocks Each block has a height of 4 cm and a cross sectional area of 16 cm The shear modulus of rubber is 2 106 N m A sideways force of 500 N is applied to the motor The distance that the motor moves sideways is 1 0 156 cm 2 1 56 cm 3 0 312 cm 4 0 204 cm

Marks 4 0 0 A prism n 2 of apex angle 90 is placed in air n 1 What should be the angle of incidence in degrees so that light ray strikes the second surface at an angle of incidence 60

c Neither scalar nor vector d Both scalar and vector A particle starting from the origin 0 0 moves in a straight line in the x y plane Its coordinates at a later time are 3 3 The path of the particle makes with the x axis an angle of CBSE PMT 2007 AIIMS 2007 a 30 b 45 323 c 60 d 0 Among the following the vector quantity is Kerala PET 2012 a Pressure b Gravitation potential c Strong

The contrast in the fringes in any interference pattern depends on 1 Fringe width 2 Wavelength 3 Intensity ratio of the sources 4 Distance between the sources

In a YDSE the intensity of light when slit is at distance from central is 7 What will be the intensity at the distance of slit is 1 2 1 2 2 AIIMS 2014 JAIIMS 2014

Bushels of Wheat Transported on the Erie Canal 1 200 000 1 000 000 800 000 600 000 400 000 200 000 0 1829 1837 1841 Bushels of Wheat After the opening of the canal trade drastically increased as merchants realized the savings in shipping rather than transporting goods overland Freight included raw materials such as lumber and farm goods going east and manufactured goods including iron stoves shovels nails pottery and imported goods such as cotton fabrics going west Thousands of men were employed operating boats between Buffalo and New York City http www albanyinstitute org building the erie canal html What role did the Erie Canal play in the economic development and cultural progress of the United tates Due to lowered shipping costs the Erie Canal increased the trade of manufactured goods to the South This allowed for the development of new communities in southern states which attracted many immigrants Due to lowered shipping costs the Erie Canal increased trade of raw materials between the West and the South This reduced the reliance on southern cotton and slavery The Erie Canal created a new transportation route to the Midwest reducing shipping costs and creating more business opportunities This increased migration and led to the growth of new towns The Erie Canal created a new transportation routo

The question has a paragraph followed by two statements Statement 1 and Statement 2 Of the given four alternatives after the statements choose the one that describes the statements A thin air film is formed by putting the convex surface of a plane convex lens over a plane glass plate With monochro matic light this film gives an interference pattern due to light reflected from the top convex surface and the bottom AIEEE 2011 glass plate surface of the film Statement 1 When light reflects from the air glass plate interface the reflected wave suffers a phase change of Statement 2 The centre of the interference pattern is dark 1 Statement 1 is true statement 2 is false 2 Statement 1 is true Statement 2 is true Statement 2 is the correct explanation of Statement 1 3 Statement 1 is true Statement 2 is true Statement 2 is not the correct explanation of Statement 1 4 Statement 1 is false Statement 2 is true

For the peak detector if CRd is the charging time constant and CRL is the discharging time constant then for proper operation of the circuit which of the following is correct statement CRd 2 T 10 and CRL 10T CRdz 10T and CRL T 10 CRd T 10 and CRL 10T CRd 10T and CRL 2 T 10

Consider a heat engine as shown in figure Q Q are heat added to T and heat removed from T2 in one cycle of engine W is the mechanical work done on the engine If W 0 then which statement is true T Question Type Single Correct Type 1 Q Q 2 W Q 3 Q Q JAL W T

When an unpolarized light of intensity I is incident on a polarizing sheet the intensity of the light which does not get 0 transmitted is AIEEE 2005 1 zero 2 I 3 10 4 10

3 19 6x 10 8 N m 4 19 6 x 1020 N m Calculate the work done if a wire is loaded by Mg weight and the increase in length is 1 Mg 2 Zero 3 Mg f 2 4 2Mg motorial of Young s modulus Y is subiected to a stress S The elastic energy st

4 Shape of the cross section The mean distance between the atoms of iron is 3x 10 10m and interatomic force constant for iron is 7 N m Yong s modulus of elasticity for iron is 1 2 33 x 10 N m 3 233x 10 N m 2 23 3 x 10 0 N m 4 2 33x 10 0 N m

Select Correct statements from the following for an active filter You can choose multiple options Input signal is attenuated in active filter Active filters are more costly than passive filter Active filter does not cause loading of source or load Active filter is easier to tune or adjust

An empty box is put on the Pam of a Physical balance and the scale is adjusted to zero by counter poising A stream of small identical beads each of mass m are then dropped into the box from a height h at a constant rate of n beds per second If the collision between the beads and the box is completely inelastic find the reading of the scale t second after the beads begin to fill the box Options 1 nm mnt gh 3 nmg 2h t t 2h

Drawing power from a 12V car battery a 9V stabilized DC voltage is required to power a car stereo system attached to the terminals A and B as shown in the figure If a Zener diode with ratings V 9V and Pmax 0 27 Vz W is connected as shown in the figure for the above purpose the minimum series resistance Rs must be R 12V V 9V A R 9B

AMERICA NORTH A STOP TROE DOCTRINE SOUTH AMERICA WHAT DO YOU MEAN BY OFF LIMITS JEUROPE AFRICA How did the Monroe Doctrine influence the foreign policy of the United States The Monroe Doctrine restricted trade with South American in order to strengthen foreign relations with Europe and Africa The Monroe Doctrine restricted trade with Europe and Africa in order to strengthen foreign relations with South America While the United States followed an isolationist policy regarding European affairs the United States established itself as a protective power over the Western Hemisphere O While the United States followed an interventionist policy regarding European affairs the United States followed an isolationist policy in the Western Hemisphere

assage to answer the question Whereas it appears that a state of war exists between Great Britain of the one part and France on the other the duty and interest of the United States require that they should with sincerity and good faith adopt and pursue a conduct friendly and impartial toward the belligerent powers And I do hereby also make known that whosoever of the citizens of the United States shall render himself liable to punishment by committing aiding or abetting hostilities against any of the said powers will not receive the protection of the United States against such punishment from George Washington Proclamation of Neutrality Philadelphia 22 April 1793 How did Washington s Proclamation of Neutrality impact the foreign policy of the United States Washington called for the punishment of citizens who aided hostile European powers which set the precedent detaining suspicious citizens without due process Washington called for the punishment of citizens who aided hostile foreign powers which set the precedent for establishing limits on the first amendment during times of crisis Washington called for the United States to avoid getting involved in a war between European powers which led to the formation of political parties Washington called for the United States to avoid getting involved in a war between European nowor resulted in a policy of isolationism

White light is incident normally on a glass plate in air of thickness 500 nm and refractive index of 1 5 The waveleng in nm in the visible region 400 nm 700nm that is strongly reflected by the plate is 1 450 2 600 3 400 4 500 glit of ging 15 mm in ploend at 2 1 m from On illuminated it by a light of wavelength 5 x 10

c 3i 4j 5k d Null vector Two persons A and B are located in X Y plane at the points 0 0 and 0 10 respectively The distances are measured in MKS units At a At a time t 0 time t 0 they start moving simultaneously with velocities A 21 ms and ug 21 ms respectively The time after which A and B are at their closest distance is B EAMCET 2009 a 2 5 s 28 c 1 s b 4 s 10 d 52 S 20 2 5

The length of the optical path of two media in contact of length d and d of refractive indices and is 1 d d 2 d d 3 d d Hitt d d HiH H respectivel

The slits in a Young s double slit experment have equal widths and the source is placed symmetrically relative to the The intensity at the central fringe is Io If one of the slits is closed the intensity at this ponit will be 1 I 2 1 4 3 1 2 4 410

For the Phase locked loop what does A B and C indicate Input Frequency A B C A Phase detector B Low pass filter C VCO A VCO B low pass filter C Phase detector A Peak detector B Low pass filter C VCO A Phase detector B high pass filter C VCO Fout Output Frequency

The light of wavelength 6328 A is incident on a slit of width 0 2 mm perpendicularly the angular width of central maxima will be 1 0 36 2 0 18 3 0 72 The bending of beam of light around corners of obstacles is called 4 0 09

A n A potential difference of 5 V is applied across a conductor of length 10 cm If drift velocity of electrons is 2 5 x 10 4 m s then electron mobility will be 1 5 x 10 4 m V 1 s 1 2 5 x 10 6 m V 1 s 1 3 5 x 10 2 m V 1 s 1 4 Zero

What is effect on fresnel biprism experiment when the white light is used 1 Fringe are effected 2 Diffraction pattern is spreaded more 3 Central fringes are white and all others are coloured 4 None of these

On increasing the temperature of a conductor its resistance increase because Question Type Single Correct Type 1 Relaxation time decreases 2 Mass of the electrons increases 3 Electron density decreases 4 None of these

Taxes equally detrimental to the commercial interests of the Parent country and the colonies are imposed upon the People without their consent The decent humble and truly loyal Applications and Petitions from the Representatives of this Province for the Redress of these heavy and very threatening Grievances have hitherto been ineffectual being assured that they have not yet reach d the Royal Ear The only Effect of transmitting these Applications has been a Mandate to Dissolve the General Assembly This is one of the greatest Distresses to which a free People can be reduced John Hancock 1768 What role did British taxation policies have on changing the relationship between Britain and the American colonies American colonists were satisfied with the King s decision to dissolve the ineffective colonial General Assembli This strengthened the relationship between the British and American colonies American colonists were angered when the petitions against unjust taxes were ignored by the King This straine the relationship between the British and American colonies American colonists were happy when the petitions to stop the unjust taxes were accepted by the King This strengthened the relationship between the British and American colonies American colonists were furious when the King refused to allow the importation of colonial goods to Britain This strained the relationship between the British and American colonies

Two identical masses are released from rest in a smooth hemispherical bowl of radius R from the positions shown in the figure You can ignore friction between the masses and the surface of the bowl 4 pts 1 If they stick together when they collide how high above the bottom of the bowl will the masses go after colliding 2 pts R J 2 If the collision between the two is an elastic collision how high above the bottom of the bowl will the second mass go after colliding 2 pts

Maximum lateral displacement of a ray of light incident on a J K CET 2006 slab of thickness t is t a 2 t 44 b t 3 d t cam if it goes

The 1 m tall conducting cylinder in figure contains air at a pressure of 76 cm of Hg A very thin piston of negligible placed at the top of the cylinder to prevent any air from air escaping then mercury is very slowly poured into the cylinder until no more can be added without the cylinder over flowing What is the height in cm of the compress Im Hg Air thin piston of negligible mass

Radius of central zone of circular zone plate is 2 3mm Wavelength of incident ligth is 5893 A Source is at a distace a 6m Then the distance of first image will be 1 9m 2 12m 3 24m 4 36m

Select the correct statements for adjustable voltage regulators You can choose multiple options Line and load regulation of a factor of 10 or better None Improved overload protection Improved system reliability

How did the fear of tyrannical government impact the writers of the Constitution The fear of tyrannical government resulted in the creation of a strong federal government which had the ability to check the unlimited power of the people The fear of tyrannical government resulted in the creation of a loose confederation of the thirteen states which protected the power of the states and the people The fear of tyrannical government resulted in the creation of a unicameral government which had limited powers in order to protect the states The fear of tyrannical government resulted in the creation of a three branch government each with differing powers and a system of checks and balances

An RC circuit with R 600k and C 10 F is connected to a 5 0 V battery until the capacitor is fully charged Then the battery is suddenly replaced with a new 3 0 V battery of opposite polarity At what time after this replacement will the energy stored in the capacitor be zero given that e Options 12 s 6 s 3 s 8 3

Choose the correct answer 1 In a Vernier calliper 20 Vernier scale divisions are equal to 19 main scale divisions and each main scale division is of 1 mm The least count of the Vernier calliper is 1 0 05 mm 3 0 5 mm 2 2 1 mm 4 2 mm han erit dilw gno A particle starts from nosition polav

Use the graph and passage to answer the question Immigration to the United States 1820 1860 Thousands 450 400 350 300 250 200 150 100 50 8 385 Total immigration for indicated year 23 322 371 603 369 980 84 066 427 833 114 371 200 877 153 640 1820 1830 1840 1850 1860 http www latinamericanstudies org immigration statistics htm Americans must rule America and to this end native born citizens should be elected for all State Federal and municipal offices of government employment in preference to all others No person should be selected for political station whether of native or foreign birth who recognizes any allegiance or obligation of any description to any foreign prince potentate or power or who refuses to recognize the Federal and State Constitutions each within its sphere as paramount to all other laws as rules of political action American Party Platform 1856 Which statement would most likely be the nativist response to the United States immigration trend and political platforms from the 1820 s to the 1850 s O Increasing immigration is threatening the political power of native born Americans and immigrants should be barred from holding any United States political offices O Immigrants are threatening the values and beliefs of native born Americans and policies should be enacted to force immigrants to assimilate to American culture The decrease of immigration is threatening the diversity of the United States and Federal and State policies should be implemented to increase immigration Immigrants who recognize foreign princes or powers should pledge loyalty to the United States hefore thou allowed to vote or run for political office

1800 INDIANA OHIO TERA TERR KY TENN MISS TERR VA MAINE part of Masa NJ DEL MASS CONN White manhood suffrage without qualifications 1830 UNORGANIZED MO MICH TE ALL IND KY TENN MISS ALA PHO Property qualifications for suffrage S C FLA N Y MO NJ FDEL MAINE MASS RI CONN 1860 MICH IND KY TENN ALA OHIO VA S O FLA Taxpaying qualifications for suffrage NY NJ ZOEL What role did the Jacksonian Era have in allowing the common man to achieve the American Dream MAINE A social class system was developed during the Jacksonian Era which increased the social mobility of the common man and made it easier for everyone to achieve the American Dream All western states and territorios had manhood suffrage MASS RI CONN The Jacksonian Era showed that a strong educational background was an important factor in economic success As a result there was an increase in public education allowing the common man to achieve the American Dream More territories were granted statehood during the Jacksonian Era which provided more opportunities for the common man to own land and achieve the American Dream The Jacksonian Era gave more people the ability to participate in the political process and illustrated that it was possible to overcome economic obstacles in order to achieve the American Dream

Given the following reactants SnCl4 and ZnCO3 which products would most likely form O a Ob O C Od SnCO3 and ZnCl Sn CO3 2 and ZnCl SnCO3 and Cl4Zn SnCO3 and ZnCl4

16 A carbon resistor has coloured strips as shown in figure What is its resistance Violet pin Yellow Brown 1 410 S2 2 3 420 2 3 D Gold 2 470 2 5 4 405 2 2

The Second Great Awakening marked a fundamental transition in American religious life Many early American religious groups in the Calvinist tradition had emphasized the deep depravity of human beings and believed they could only be saved through the grace of God The new evangelical movement however placed greater emphasis on humans ability to change their situation for the better By stressing that individuals could assert their Free Will in choosing to be saved and by suggesting that salvation was open to all human beings the Second Great Awakening embraced a more optimistic view of the human condition http www ushistory org us 22c asp I come to represent to you the condition of a numerous and unhappy class of sufferers who fill the cells and dungeons of the poor houses and the prisons of your state I refer to the pauper and indigent insane epileptics and idiots of Pennsylvania I come to urge their claims upon the commonwealth for protection and support such protection and support as is only to be found in a well conducted Lunatic Asylum Dorothea Dix Memorial soliciting a state hospital for the insane February 3 1845 How did Dorothea Dix respond to the teachings of the 2nd Great Awakening The 2nd Great Awakening s focus on a human s ability to change a situation for the better influenced Dorothe Dix to create a welfare system for the poor The 2nd Great Awakening s focus on individual s ability to enact social change influenced Dorothea Dix to seek prison reform and mental asylums O The 2nd Great Awakening s focus on Free Will influenced Dorothea Dix to work to increase the use of asylum to help educate the unhappy class The 2nd Great Awakening s focus on societal improvement influenced Dorothea Dix to support harsher punishments for criminals to improve human behavior

I observe what you kindly tell me about the future Cabinet My dear sir I want no office When have I shown an avidity enthusiasm for office In rejecting the mission to Russia and the Department of War under one administration If Mr Adams is elected I know not who will be his Cabinet I know not whether I shall be offered a place in it or not If there should be an offer I shall decide upon it when it may be made according to my sense of duty Henry Clay letter to Francis P Blair Dear Major I wrote you in great haste the other day in which I gave you the rumors that were in circulation about the election I am told it has this morning developed itself and that Mr Clay has come out in open support of Mr Adams This for one I am pleased with it will give the people a full view of our political weathercocks worthless politicians here and how little confidence ought to be reposed placed in the professions of some great political characters Andrew Jackson privately to Berkely Lewis How would Henry Clay respond to Andrew Jackson s accusation of a Corrupt Bargain in the Electic of 1824 Clay would agree with Jackson that a Corrupt Bargain occured because Clay accepted a cabinet job after he cam out in open support of Adams for president O Clay would agree with Jackson that a Corrupt Bargain occured Clay confirmed the rumors that if Adams was elected by the House of Representatives then Clay would be offered a job Clay would disagree with Jackson that a Corrupt Bargain occured Clay claimed he did not have a job in Adams cabinet before Adams was elected by the House of Representatives O Clay would disagree with Jackson that a Corrupt Bargain occured because Clay rejected a mission to Du proving he did not want to influenced

LINCOLN Easy on the Southerners 1 HE OFFERED A PARDON TO ALL SUPPORTERS OF THE CONFEDERACY IF THEY SWORE ALLEGIANCE TO THE UNION AND PLEDGED TO ACCEPT THE END OF SLAVERY WHEN 10 OF THE MEN ELIGIBLE TO VOTE IN 1860 DID THIS THE STATE QUALIFIED FOR REENTRY INTO THE UNION 2 NEW STATE CONSTITUTIONS HAD TO OUTLAW SLAVERY 3 NO PROTECTION FOR FREED AFRICAN AMERICANS JOHNSON VP Harsh on the Southerners 1 PROPOSED HIS PLAN AFTER LINCOLN WAS ASSASSINATED AND HE ASCENDED TO THE PRESIDENCY 2 AMNESTY TO WHITES WHO SIGNED LOYALTY OATHS 3 STATES MUST ABOLISH SLAVERY 4 STATES MUST PAY WAR DEBTS 5 NO ROLE FOR FREED BLACKS 6 NO VOTE FOR AFRICAN AMERICANS How did the agenda of the Radical Republicans affect Reconstruction RUCTION RADICAL REPUBLICANS IN CONGRESS Wanted to help blacks the most 1 PROMOTED EQUAL RIGHTS FOR FREED AFRICAN AMERICANS 2 MILITARY OCCUPATION OF THE SOUTH TO OVERSEE CHANGES 3 VOTING RIGHTS FOR AFRICAN AMERICAN MALES 4 13TH 14TH 15TH AMENDMENTS In order to ensure that white southerners who signed loyalty oaths were given amnesty Radical Republicans pressured the President to pardon them In order to ensure that the Reconstruction Amendments were implemented Radical Republicans mandated that new southern constitutions outlawed slavery O In order to ensure that the Reconstruction Amendments were implemented Radical Republicans placed the South under the control of the federal military O In order to ensure that white sout

STEP 1 A GLASS WITH A FRIEND STEP 2 A GLASS TO KEEP THE COLD OUT MUCH BY FRIENDS STEP 8 DESPERATION AND CRIME STEP 9 DEATH BY SUICIDE Transcript of text Step 1 A Glass with a Friend Step 2 A Glass to Keep the Cold Out Step 3 A Glass Too Much Step 4 Drunk and Riotous Step 5 The Summit Attained Jolly Companions A Confirmed Drunkard Step 6 Poverty and Disease Step 7 Forsaken by Friends Step 8 Desperation and Crime Step 9 Death by Suicide Here is a fearful enemy of God and man the liquor traffic it makes ruthless war upon the people it blasts and destroys their homes as with pestilence and fire it kills savagely cruelly more that a hundred thousand of them every year robbing them first and driving wives and children to rain and despair Neal Dow Napoleon of Temperance c 1850 How would Neal Dow respond to the cartoonist s position on alcohol Dow would disagree with the cartoonist because he believed the negative effects of alcohol were gradual Therefore the government should not support alcohol reform Dow would disagree with the cartoonist because he believed that alcohol was good for the economy Therefore the government should encourage the sale of alcohol O Dow would agree with the cartoonist that alcohol destroys individuals ruins families and increases crime Therefore the government should place regulations on alcohol O Dow would agree with the cartoonist because he believed that alcohol contribute to suicide attempts Th the government should ban the sale of alcohol