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The rear face of an equiconvex lens of f...

The rear face of an equiconvex lens of focal length 30 cm is silvered that if behave like a concave mirror The focal length of mirror is [`mu_(Lens) `= 3/2]

A

7.5 cm

B

15cm

C

30cm

D

20cm

Text Solution

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The correct Answer is:
A
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