A convergent lens of glass is immersed in water. Its focal length in water is:

Equal to its focal length in air

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Less than its focal length in air

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Greater than its focal length in air

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Such that it behaves as divergent lens of same focal length

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Solution

The correct option is C Less than its focal length in air
A convergent lens of glass ice immersed in water. Its focal length in water is less than its focal length in air because lens becomes less convergent.

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A convergent lens of glass is immersed in water. Its focal length in water is:

The correct option is C Less than its focal length in airA convergent lens of glass ice immersed in water. Its focal length in water is less than its focal length in air because lens becomes less convergent.

The correct option is C Less than its focal length in air
A convergent lens of glass ice immersed in water. Its focal length in water is less than its focal length in air because lens becomes less convergent.