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Question

Refractive index :


A
is actual property of the substance
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B
depends on the wavelength of light used to measure
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C
sensitive to the eye
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D
none of these
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Solution

The correct option is B depends on the wavelength of light used to measure
The refractive index varies with the wavelength of light.

We know that $$\mu=\dfrac{c}{v}$$

c=velocity of light in air

$$v$$=velocity of light in specific medium 

Also $$v=\lambda f$$

$$\lambda$$ is wavelength of light.

Hence refractive index depends on wavelength. 

Physics

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