The speed at which the image of the luminous point object is moving, if the luminous point object is moving at speed ` v_(0)` towards a spherical mirror, along its axis is
(Given, `R=` radius of curvature `u=` object distance)
A. `v_(l)=-v_(o)`
B. `v_(l)=-v_(o)[R/(2u-R)]^(2)`
C. `v_(l)=-v_(o)((2u-R)/R)`
D. `v_(l)=-v_(o)(R/(2u-R))`