The color of sky is blue due to MCQ with Answer and Explanation

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The color of sky is blue due to

A. Scattering

B. Refraction

C. Dispersion

D. Reflection

Answer: Option A

Solution (By JKSSB Mock Tests)

Rayleigh scattering of sunlight by air molecules, blue scattered most.

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Question #1

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The phenomenon of splitting of spectral lines in magnetic field is called

A. Compton effect

B. Stark effect

C. Raman effect

D. Zeeman effect

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Correct Answer: Option D

Explanation:
Zeeman effect: splitting due to magnetic field. Stark effect due to electric field.

This question belongs to: Science Physics

Question #2

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The scientist who discovered the link between electricity and magnetism was

A. Faraday

B. Coulomb

C. Oersted

D. Maxwell

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Correct Answer: Option C

Explanation:
Oersted found that current-carrying wire deflects compass needle.

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Question #3

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Newton's second law gives the measure of

A. Energy

B. Force

C. Momentum

D. Inertia

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Correct Answer: Option B

Explanation:
F = ma, defines force quantitatively. First law inertia, third action-reaction.

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