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A concave mirror of focal length 20cm (in air) is immersed in water ( μ = 4/3). The focal length of the mirror in water will be

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By Expert Faculty of Sri Chaitanya
a
20 cm
b
43 f
c
34 f
d
73 f
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detailed solution

Correct option is A

For mirror nature does not change. f = 20 cm

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