The ratio of refractive index of red light to blue light in air is:

less than unity

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equal to unity

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greater than unity

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less as well as greater than unity depending upon the experimental arrangements.

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Solution

The correct option is A less than unity
Answer is A.
Blue light is refracted more than red light So, the refractive index of red / refractive index of blue is less than one.

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A light ray enters from medium A to medium B as shown in figure. The refractive index of medium B relative to A will be:

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(d) zero

The ratio of the refractive index of red light to blue light in air is
[CPMT 1978]

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The ratio of refractive index of red light to blue light in air is:

The correct option is A less than unityAnswer is A.Blue light is refracted more than red light So, the refractive index of red / refractive index of blue is less than one.

The correct option is A less than unity
Answer is A.
Blue light is refracted more than red light So, the refractive index of red / refractive index of blue is less than one.