Question

A point source $S$ is moving with a speed of $10msec^{- 1}$ in $x-y$ plane as shown. The radius of curvature of a concave mirror is $4m.$ What will be velocity vector of the image formed by paraxial rays

• A. $-2\hat{i}-6\hat{j}$
• B. $-2\hat{i}-4\hat{j}$
• C. $-2\hat{i}-8\hat{j}$
• D. $2\hat{i}-4\hat{j}$

Answer 1

Answer: (B)

Reducible in exact form