The scientist who discovered electromagnetic induction was MCQ with Answer and Explanation

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The scientist who discovered electromagnetic induction was

A. Oersted

B. Faraday

C. Ampere

D. Volta

Answer: Option B

Solution (By JKSSB Mock Tests)

Michael Faraday.

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Question #1

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C.V. Raman won Nobel Prize for his work on

A. Discovery of electron

B. Photoelectric effect

C. Raman effect (scattering of light)

D. Nuclear fission

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Correct Answer: Option C

Explanation:
Sir C.V. Raman discovered inelastic scattering of light (Raman effect) in 1928, received Nobel in 1930. Used to study molecular structure. Photoelectric effect: Einstein. Electron: J.J. Thomson. Fission: Hahn and Strassmann.

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Question #2

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The part of the electromagnetic spectrum used in remote controls is

A. Microwave

B. Infrared

C. Radio wave

D. Ultraviolet

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Correct Answer: Option B

Explanation:
TV remote uses IR. Not microwave (microwave oven).

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Question #3

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A force of 5 N gives mass m1 acceleration 8 m/s² and mass m2 acceleration 24 m/s². What acceleration would it give if both masses tied together?

A. 4 m/s²

B. 6 m/s²

C. 32 m/s²

D. 16 m/s²

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Correct Answer: Option B

Explanation:
m1 = 5/8 = 0.625 kg, m2 = 5/24 ≈ 0.2083 kg. Total m=0.8333 kg. a = 5/0.8333 ≈ 6 m/s².

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