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Question
If David is observing his image in plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between David and his image will be :
If David is observing his image in plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between David and his image will be :
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Solution
The correct option is C 6 m
Plane mirror produces erect image and is of same size and also at the same distance from the mirror as the object.
if he moves 1 m, distance of object from mirror= 3 m
distance of image from mirror= 3 m
distance between image and object =6 m.
Plane mirror produces erect image and is of same size and also at the same distance from the mirror as the object.
if he moves 1 m, distance of object from mirror= 3 m
distance of image from mirror= 3 m
distance between image and object =6 m.
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