The invention of the high-power chemical explosive TNT (Trinitrotoluene) was originally intended for use as what? MCQ with Answer and Explanation

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The invention of the high-power chemical explosive TNT (Trinitrotoluene) was originally intended for use as what?

A. Yellow dye

B. Disinfectant

C. Rocket fuel

D. Mining agent

Answer: Option A

Solution (By JKSSB Mock Tests)

German chemist Julius Wilbrand discovered TNT in 1863 as a textile dye; its explosive potential was not recognized until decades later.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Who discovered that the speed of light is constant in all inertial frames of reference, forming the basis of Special Relativity?

A. Max Planck

B. Albert Michelson

C. Albert Einstein

D. Hendrik Lorentz

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Correct Answer: Option C

Explanation:
Albert Einstein postulated that the speed of light in a vacuum is invariant, irrespective of the motion of the source or observer.

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Question #2

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The discovery of the Raman Effect, which won the Nobel Prize in Physics in 1930, was made by whom?

A. Satyendra Nath Bose

B. Homi J. Bhabha

C. Jagadish Chandra Bose

D. C.V. Raman

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Correct Answer: Option D

Explanation:
Sir Chandrasekhara Venkata Raman discovered the inelastic scattering of light, known as the Raman Effect, on February 28, 1928.

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Question #3

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The invention of the common mechanical elevator safety brake system was publicly demonstrated at the World's Fair by whom?

A. Elisha Otis

B. Thomas Edison

C. James Watt

D. Henry Bessemer

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Correct Answer: Option A

Explanation:
Otis dramatic demonstration in 1854 involved cutting the platform support rope while standing on it, proving the safety gear worked.

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