Question

an object moves towards the pole of concave mirror then what is direction of motion of image?
1)towards the pole
2)away frm pole
3)maybe towards or may be away from pole
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Answer 1

Answer:

A point object is moving along principal axis of concave mirror with uniform velocity towards pole. Initially the object is at infinite distance from pole right side of the mirror as shown. Before the object collides with mirror, the number of times a which the distance between object and its image is 40cm are.

Explanation: