The invention of the carbon filament telephone transmitter (microphone) that improved long-distance audio was done by whom? MCQ with Answer and Explanation

Question

The invention of the carbon filament telephone transmitter (microphone) that improved long-distance audio was done by whom?

A. Thomas Edison

B. Alexander Graham Bell

C. David Edward Hughes

D. Nikola Tesla

Answer: Option A

Solution (By JKSSB Mock Tests)

Thomas Alva Edison invented the highly efficient carbon microphone, which became standard for telephone transmitters for decades.

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

Who discovered that structural chemical atoms are arranged in strict configurations characterized by coordination numbers, founding inorganic stereochemistry?

A. Dmitri Mendeleev

B. Alfred Werner

C. Linus Pauling

D. Gilbert Lewis

View Answer & Solution Discuss

Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option B

Explanation:
Alfred Werner proposed the coordination theory of complex inorganic compounds, winning the 1913 Nobel Prize in Chemistry.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

Share Report

The term 'vitamin' was coined by which biochemist in 1912?

A. Frederick Hopkins

B. Casimir Funk

C. Robert Koch

D. Louis Pasteur

View Answer & Solution Discuss

Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option B

Explanation:
Polish biochemist Casimir Funk coined the term 'vitamine' (later shortened to vitamin) to describe vital amine nutrients.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #3

Share Report

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

A. C.V. Raman

B. Satyendra Nath Bose

C. Jagadish Chandra Bose

D. Homi J. Bhabha

View Answer & Solution Discuss

Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option A

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

This question belongs to: Static General Knowledge Inventions and Discoveries

Explore All Inventions and Discoveries MCQs