A dentist has a small mirror of focal length 16 mm He views

Last updated: 6/9/2023

A dentist has a small mirror of focal length 16 mm He views the cavity in the tooth of a patient by holding the mirror at a distance of 8 mm from the cavity The magnification is a 1 c 2 72 A light ray from air is incident as shown in figure at one end of a glass fibre refractive index 1 5 60 making an incidence angle of How much time would it take to Air Air 60 1 4979330 Glass b 1 5 d 3 the lateral surface so that it undergoes a total internal reflection km 916 Taverse the straight fibre of length 1 a 3 33 l s c 5 77 l s 73 Pick the correct statement from the following a Primary rainbow is a virtual image and secondary rainbow is a real image b 6 67s d 3 85 s b Primary rainbow is a real image and secondary rainbow image TA COM