Q.
A point object P moves towards a convex mirror with a constant speed V , along optic axis. The speed of the image
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a
Is always
b
May be>,=or
c
Increases asP comes closer to the mirror
d
Decreases asP comes closer to the mirror
answer is M.
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Detailed Solution
In case of a convex mirror, as the object moves from infinity to the pole of the mirror, the virtual image moves from its focus to the pole of the mirror. Thus speed of the image is always less than V . However, this lower speed of image increases asP comes closer to the mirror.
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