Science, asked by mominasma925, 1 month ago

QlChose the correct answer

1. A concave mirror of radius 30 cm is placed in water. It's focal length in air and water differ by
(a) 15
(b) 20
(c) 30
(d) 0

Answers

Answered by mishti8126

2

answer: (a) 15

Explanation:

because formula f=r/2

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