Who discovered that electrical currents pass through vacuum cavities via discrete streams named 'Cathode Rays'? MCQ with Answer and Explanation

Question

Share Report Error

Who discovered that electrical currents pass through vacuum cavities via discrete streams named 'Cathode Rays'?

A. Michael Faraday

B. William Crookes and Julius Plücker

C. Wilhelm Röntgen

D. J.J. Thomson

Answer: Option B

Solution (By JKSSB Mock Tests)

Plücker observed early glow phenomena, and Crookes engineered highly evacuated discharge tubes to isolate ray behaviors.

This question belongs to: Static General Knowledge Inventions and Discoveries

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Inventions and Discoveries Questions

Question #1

Share Report

The invention of the common chemical manufacturing system known as the Contact Process optimized production of what?

A. Ammonia

B. Nitric Acid

C. Sulfuric Acid

D. Hydrochloric Acid

View Answer & Solution Discuss

Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option C

Explanation:
Peregrine Phillips patented the contact process in 1831, using platinum catalysts to convert sulfur dioxide into sulfur trioxide.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

Share Report

Who discovered the existence of infrared radiation in sunlight in 1800 using thermometers and a prism?

A. James Clerk Maxwell

B. Heinrich Hertz

C. Johann Wilhelm Ritter

D. William Herschel

View Answer & Solution Discuss

Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option D

Explanation:
William Herschel discovered infrared light by measuring the temperature rise just beyond the red end of the visible spectrum.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #3

Share Report

Who discovered the fundamental principle of chemical thermodynamics relating free energy, enthalpy, and entropy?

A. James Joule

B. Josiah Willard Gibbs

C. Lord Kelvin

D. Sadi Carnot

View Answer & Solution Discuss

Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option B

Explanation:
Josiah Willard Gibbs formulated Gibbs Free Energy ($G = H - TS$), establishing mathematical precision within physical chemistry.

This question belongs to: Static General Knowledge Inventions and Discoveries

Explore All Inventions and Discoveries MCQs