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Lens Formula and Magnification

A pencil of l...

Question

A pencil of length 4 cm is lying in front of a concave mirror,
what will be the length of the image of the pencil formed by the mirror?

A

20 cm

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B

30 cm

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C

10 cm

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D

40 cm

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Solution

The correct option is A 20 cm
.

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