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Mirror Formula Formal Proof

A point, X is...

Question

A point, X is at 2 cm above the principal axis at a distance of 30 cm from a concave mirror of focal length 40 cm. At what height below the principal axis its image will be formed?

A

6 cm

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B

8 cm

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C

2 cm

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D

4 cm

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Solution

The correct option is B 8 cm
.

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