The electric bulb was invented by MCQ with Answer and Explanation

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The electric bulb was invented by

A. Thomas Edison

B. Michael Faraday

C. Nikola Tesla

D. James Watt

Answer: Option A

Solution (By JKSSB Mock Tests)

Thomas Alva Edison invented the practical incandescent light bulb in 1879.

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Practice More Physics Questions

Question #1

The process of heat transfer in a solid metal rod is

A. Convection

B. Radiation

C. Sublimation

D. Conduction

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Correct Answer: Option D

Explanation:
In solids, heat flows by conduction (lattice vibrations and free electrons). Metals are good conductors due to free electrons. Convection in fluids, radiation no medium.

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Question #2

The angle of incidence is equal to angle of reflection is the law of

A. Diffraction

B. Dispersion

C. Refraction

D. Reflection

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Correct Answer: Option D

Explanation:
Law of reflection.

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Question #3

Assertion (A): Fuse wire has high resistance and low melting point. Reason (R): It must melt to break circuit on overload.

A. Both A and R true, R correct explanation

B. Both A and R true, R not correct explanation

C. A true, R false

D. A false, R true

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Correct Answer: Option A

Explanation:
High resistance produces more heat (I²R), low melting point ensures quick melting. Both true and R explains A.

This question belongs to: Science Physics

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