A) \[10cm/sec\]
B) \[5cm/sec\]
C) \[20cm/sec\]
D) \[15cm/sec\]
Correct Answer: C
Solution :
Suppose at any instant, plane mirror lies at a distance x from object. Image will be formed behind the mirror at the same distance x. When the mirror shifts towards the object by distance ?y? the image shifts \[=x+y-(x-y)=2y\] So speed of image = 2 ´ speed of mirrorYou need to login to perform this action.
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