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- A point object is moving along the principal axis of a concave mirror at rest of focal length 30cm with
. A point object is moving along the principal axis of a concave mirror at rest of focal length 30cm with
A point object is moving along the principal axis of a concave mirror at rest of focal length 30cm with speed 5m/s towards the mirror. The speed of image of object when object is at a distance 60cm from mirror is
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