No work is done and kinetic energy also does not change A

Last updated: 6/12/2023

No work is done and kinetic energy also does not change A long narrow horizantal silt is placed 1mm above horizontal plane mirror the interference between the light coming directly from the silt and that after reflection is seen on a screen 1m away from the silt if X 700nm then fringe width is Q 12 Option 1 20mm Option 2 25mm Option 3 30mm Option 4 35mm Correct Answer 35mm