Question

# Refractive index :

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

Solution

## The correct option is B depends on the wavelength of light used to measureThe 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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