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Light — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsLight2 Marks
Question
State two factors which affect the critical angle for a given pair of media.
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Answer

Factors affecting the critical angle are:
(i) The colour (or wavelength) of light.
(ii) The temperature (on changing the temperature of medium, its refractive index changes).

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