Question

Which of these factors affect the critical angle? (i) Colour (wave length) of the light. (in) Frequency of light (1) Nature of the pair of media (iv) Temperature of medium cha​

Answer 1

Answer:

iv) Temperature of medium

Explanation:

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Answer 2

Answer:

The critical angle increases with increase in wavelength of light.

Temperature: On increasing the temperature of the medium, its refractive index decreases, so the critical angle for that pair of media increases. Thus, the critical angle increases with increase in temperature.

Explanation:

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