A convex lens of crown glass ( =1.525) will behave as a divergent lens if immersed in

Water (n =1.33)

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In a medium of n = 1.525

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Carbon disulphide n =1.66

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It cannot act as a divergent lens

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Solution

The correct option is C Carbon disulphide n =1.66
A lens shows opposite behaviour if $μ_{m e d i u m} > μ_{l e n s}$ .e., a convergent lens becomes divergent in nature

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