Question

A pin forms an image in a plane mirror.
If the mirror is shifted by 10 cm. towards
the pin, then by what distance will the
image shift?
(1) 10 cm
(2) 20 cm
(3) 30 cm. (4) 40 cm.
​

Answer 1

Answer:

30cmis the answer 30cm

Answer 2

Answer:

10 cm is your required answer if you are watching the distances from the mirror but if you are trying to measure the distance from the pin then it will be shifted by 20 cm.

Explanation:

It's because the distance of image from a plane mirror is same as that of an object from it.

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