Question

19. A ray of light after being reflected is allowed to fall on a scale. When the reflecting plane mirror is
slightly turned, the spot of light is displaced through 0-25 m on the scale. If the distance of the scale from
the mirror is 100 m; find the angle of rotation of the mirror.
IJ.E.E. '04] [Ans. 7-16°)
attached to a galvanometer coil​

Answer 1

$\bf \underline \pink {MY \: NAME \: IS \: MAHI }$