Who discovered that light exhibits particle-like momentum in scattering collisions with electrons, proving photon theory? MCQ with Answer and Explanation

Question

Who discovered that light exhibits particle-like momentum in scattering collisions with electrons, proving photon theory?

A. Arthur Compton

B. Max Planck

C. Niels Bohr

D. Albert Einstein

Answer: Option A

Solution (By JKSSB Mock Tests)

Arthur Compton discovered the Compton Effect in 1923, providing explicit proof that light acts as discrete localized particles.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

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The invention of the common household aerosol spray can configuration was developed by whom?

A. Erik Rotheim

B. Leo Baekeland

C. Wallace Carothers

D. Roy Plunkett

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Correct Answer: Option A

Explanation:
Norwegian engineer Erik Rotheim patented the first aerosol can layout featuring pressure valves and liquid propellant mixtures in 1926.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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The invention of the common mechanical pencil sharpener layout with internal planetary gears was patented by whom?

A. Christopher Sholes

B. Walter Hunt

C. John Lee Love

D. Nicolas Conté

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Correct Answer: Option C

Explanation:
African-American inventor John Lee Love patented the simple, functional portable mechanical sharpener layout ('Love Sharpener') in 1897.

This question belongs to: Static General Knowledge Inventions and Discoveries