A glass concave lens is placed in a liquid in which it behaves like a convergent lens. If the refractive indices of glass and liquid with with respect to air are $_{a} μ_{g}$ and $_{a} μ l$ respectively, then

_{a} μ_{g} = 5_{a} μ_{l}

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_{a} μ_{g} >_{a} μ_{l}

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_{a} μ_{g} <_{a} μ_{l}

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_{a} μ_{g} = 2_{a} μ_{l}

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Solution

The correct option is B $_{a} μ_{g} <_{a} μ_{l}$
$∴$ $L m s$ behaves at convergent being divergent in nature.
$∴_{a} μ_{g} <_{a} μ I$
Hence, the option $C$ is the correct answer.

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Similar questions

Q. The power of a thin convex lens

(_{a} μ_{g} = 1.5)

is +5.0 D. When it is placed in a liquid of refractive index

_{a} μ_{l}

,then it behaves as a concave lens of local length 100 cm. The refractive index of the liquid

_{a} μ_{l}

will be

Q. The refractive index of water with respect to air is

_{a} μ_{w}

and of glass with respect to air is

_{a} μ_{g}

. So,

\frac{_{a} μ_{g}}{_{a} μ_{w}}

should express:

The refractive index of water with respect to air is a $^{μ} w$ and a glass with respect to air is a $^{μ} g$ . Express the refractive index of glass with respect to water.

Q. A glass convex lens has a focal length of

20

cm in air. What will be its focal length, when it is completely immersed in a liquid of refractive index

1.63

? ( Given

_{a} μ_{g} = 1.5

)

Q. A ray of wavelength

5400 ˚ A

suffers refraction from air to glass. Taking

_{a} μ_{g} = 3 / 2

, find the wavelength of light in glass.

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A glass concave lens is placed in a liquid in which it behaves like a convergent lens. If the refractive indices of glass and liquid with with respect to air are aμg and aμl respectively, then

The correct option is B aμg<aμl∴ Lms behaves at convergent being divergent in nature.∴aμg<aμIHence, the option C is the correct answer.

A glass concave lens is placed in a liquid in which it behaves like a convergent lens. If the refractive indices of glass and liquid with with respect to air are $_{a} μ_{g}$ and $_{a} μ l$ respectively, then

The correct option is B $_{a} μ_{g} <_{a} μ_{l}$
$∴$ $L m s$ behaves at convergent being divergent in nature.
$∴_{a} μ_{g} <_{a} μ I$
Hence, the option $C$ is the correct answer.