Physics MCQ Questions with answers

Here Important Physics MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button or on option itself. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping whatsapp button.

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T

Tina Singh • 12.22K Points
Tutor II Physics

Q) What is the typical temperature required for nuclear fusion to occur?

  • (A) 1,000°C
  • (B) 10,000°C
  • (C) 10 million°C
  • (D) 100°C
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Correct Answer - Option (C)

Explanation:

Nuclear fusion requires extremely high temperatures (around 10 million°C) to overcome electrostatic repulsion.

T

Tina Singh • 12.22K Points
Tutor II Physics

Q) Which of the following isotopes is not radioactive?

  • (A) Uranium-235
  • (B) Carbon-12
  • (C) Radium-226
  • (D) Plutonium-239
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Correct Answer - Option (B)

Explanation:

Carbon-12 is stable and non-radioactive, while the others are radioactive isotopes.

T

Tina Singh • 12.22K Points
Tutor II Physics

Q) What is the major challenge in controlling nuclear fusion reactions?

  • (A) Lack of uranium fuel
  • (B) Containment of high temperature plasma
  • (C) Excessive radiation leakage
  • (D) Low energy output
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Correct Answer - Option (B)

Explanation:

Fusion reactions require extremely hot plasma, which is difficult to contain safely and efficiently.

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