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A point source of light is placed in fro...

A point source of light is placed in front of a plane mirror.

A

All the reflected rays meets at a point when produced backward

B

ony the reflected rays close to the normal meet at a point when produced backward

C

ony the reflected rays making a smal angle with the mirror meet at point when prodced backward.

D

light of different colours make different images

Text Solution

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The correct Answer is:
A
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Focal length of a plane mirror

You have learnt in the text how Huygens' principle leads to the laws of reflection and refraction. Use the same principle to deduce directly that a point object placed in front of a plane mirror produces a virtual image whose distance from the mirror is equal to the object distance from the mirror.

Knowledge Check

  • A small object is placed 10 cm in front of a plane mirror. If you stand behind the object 30 cm from the object and look at its image, the distance foursed for your eye will be

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