Question

A man stands 10m in front of a large plane mirror. How far must he walk before he is 5m
away from the image?
usimage
a) 17.5 m towards the mirror
c) 7.5 m away from the mirror
b)7.5 m towards the mirror
d)2.5 m towards the mirror​

Answer 1

$\huge\pink{Hello}$

$\large\blue{Solution:-}$

b) 7.5 m towards the mirror.

Explaination

Distance between image and object = 10+10 = 20 m

New distance = 5 m

Distance decreased = 20-5 = 15 m

So, Distance covered by man = 15/2 = 7.5 m

As the distance is decreasing so the man will walk towards the mirror.

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