Which scientist is associated with the discovery of electron? MCQ with Answer and Explanation

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Which scientist is associated with the discovery of electron?

A. J.J. Thomson

B. Niels Bohr

C. James Chadwick

D. Ernest Rutherford

Answer: Option A

Solution (By JKExamLibrary)

J.J. Thomson discovered the electron.

This question belongs to: Static General Knowledge Science and Technology

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What is the full form of PDF?

A. Portable Document Format

B. Portable Data File

C. Permanent Document Format

D. Personal Document File

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Correct Answer: Option A

Explanation:
PDF is a file format used for documents.

This question belongs to: Static General Knowledge Science and Technology

Question #2 Report Error

What is the hardest part of the human body?

A. Bone

B. Nails

C. Skull

D. Tooth enamel

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Correct Answer: Option D

Explanation:
Tooth enamel is the most mineralized and hardest substance in the human body.

This question belongs to: Static General Knowledge Science and Technology

Question #3 Report Error

The Wright Brothers are known for inventing:

A. Rocket

B. Helicopter

C. Submarine

D. Airplane

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Correct Answer: Option D

Explanation:
They achieved the first powered, controlled flight in 1903.

This question belongs to: Static General Knowledge Science and Technology

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