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What causes haloes (rings) around the sun or the moon?

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in Physics – Class 12 by (135k points)
What causes haloes (rings) around the sun or the moon?

(a) Total internal reflection

(b) Refraction of light

(c) Reflection of light

(d) Dispersion

The question was asked in exam.

Question is taken from Ray Optics topic in section Ray Optics and Optical Instruments of Physics – Class 12

1 Answer

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Best answer
Correct answer is (c) Reflection of light

The best I can explain: When the sun or the moon is seen through a thin veil of high clouds, haloes, i.e. rings, are seen. These are formed due to the reflection of light by the icy crystals present in the atmosphere. So, this is the cause of rings around the sun or the moon.

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