Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Optics

Blue colour of the sky and the reddish appearance of the Sun at the sunrise or sunset is due to

1

Scattering

2

Reflection

3

Refraction

4

More than one of the above

5

None of the above

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