David is observing his image in a plane mirror

Asked by admin @ 16/08/2021 in Physics viewed by 296 People

David is observing his image in a plane mirror. the distance between the mirror and his image is 4 meters. if he moves 1 meter towards the mirror then the distance between David and his image will be what? a) 3m b) 5m c) 6m d) 8m I want the answer with explanation

Answered by admin @ 16/08/2021

HELLO....

(iii) 6 m

Distance between the mirror and David’s image, d2 = 4 m
Therefore, d1 = d2 = 4 m
If David moves 1 m towards the mirror, then d1 = 4 − 1 = 3 m
Again, d1 = d2 = 3 m
Therefore, the distance between David and his image is d1 + d2 = 3 + 3 = 6 m.

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David is observing his image in a plane mirror

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