A lady is standing in front of a plane mirror at a distance of 1 m from it. She walks 60 cm towards mirror. The distance of her image now from herself (ignoring the thickness of the mirror) is _________.

40 cm

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60 cm

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80 cm

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120 cm

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Solution

The correct option is A 40 cm
Plane mirror forms an image behind the mirror at the distance as same as the object's distance in front of the mirror.
So, distance of lady from the mirror = $100 - 60 c m = 40 c m$
So, distance of her image is also $40 c m$ behind the mirror.

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A lady is standing in front of a plane mirror at a distance of 1 m from it. She walks 60 cm towards mirror. The distance of her image now from herself (ignoring the thickness of the mirror) is _________.

The correct option is A 40 cmPlane mirror forms an image behind the mirror at the distance as same as the object's distance in front of the mirror.So, distance of lady from the mirror = 100−60 cm=40 cmSo, distance of her image is also 40 cm behind the mirror.

The correct option is A 40 cm
Plane mirror forms an image behind the mirror at the distance as same as the object's distance in front of the mirror.
So, distance of lady from the mirror = $100 - 60 c m = 40 c m$
So, distance of her image is also $40 c m$ behind the mirror.