Physics
Grade-10
Easy
Question
The temperatures at which the various layers of the atmosphere are present are given below in terms of degree Celsius. Identify the layer which has the lowest refractive index.
- 12
- 25
- 27
- 30
Hint:
Refractive index of a medium decreases with the increase in temperature.
The correct answer is: 30
Refractive index of a medium decreases with the increase in temperature. With the increase in temperature, the speed of light in that medium increases; thus, the refractive index decreases.
So 30 is correct
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