Physics, asked by devilgirl008, 7 months ago

The focal length of a convex mirror is 20 cm and a convex mirror is 30 cm. what is its effective focal length

Answers

Answered by muskanjangde861

3

Answer:

1/f = 1/20 - 1/30

f= 60 cm

Explanation:

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Answered by Anonymous

1

Answer:

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