Q. An object is approaching a plane mirror at$\ 10$ $cms^{- 1}$. A stationary observer sees the image. At what speed will the image approach the stationary observer?
A) 10 $cms^{- 1}$
B) 5 $cms^{- 1}$
C) 20 $cms^{- 1}$
D) 15 $cms^{- 1}$
Explanation
(a) [image:9_image119.jpeg]
As is clear from figure the distance of image with reference to observer reduces by 10 cm in one second
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.