1.

A point object 'O' is at the center of curvature of a concave mirror. The mirror starts to move at a speed u, iin a direction perpendicular to the principal axis. Then, the initial velocity of the image is

Answer»

2u, in the direction OPPOSITE to theat of MIRROR's velocity
2u, in the direction same as that of mirror's velocity
zero
u, in the direction same as that of mirror's velocity

Solution :IMAGE velocoti(w.r.t mirro) `=-mxx` OBJECT belocity (w.r.t. mirror)
Here `m=1`


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