Physics MCQ Questions with answers

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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. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping Share button.

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📊 Physics
Q. Radiocarbon dating technique is used to estimate the age of
  • (A) rocks
  • (B) monuments
  • (C) soil
  • (D) fossils
💬 Discuss
✅ Correct Answer: (D) fossils

Explanation: Radiocarbon dating involves determining the age of an ancient fossil or specimen by measuring its carbon-14 content. Carbon-14, or radiocarbon, is a naturally occurring radioactive isotope that forms when cosmic rays in the upper atmosphere strike nitrogen molecules, which then oxidize to become carbon dioxide.

📊 Physics
Q. Identify the vector quantity from the following
  • (A) Heat
  • (B) Angular momentum
  • (C) Time
  • (D) Work
💬 Discuss
✅ Correct Answer: (B) Angular momentum
📊 Physics
Q. Large astronomical telescopes always use as objective
  • (A) lens
  • (B) mirror
  • (C) combinations of lenses
  • (D) None of the above
💬 Discuss
✅ Correct Answer: (C) combinations of lenses
📊 Physics
Q. One should not connect a number of electrical appliances to the same power socket because
  • (A) this can damage the appliances due to overloading
  • (B) this can damage the domestic wiring due to overloading
  • (C) this can damage the electrical meter
  • (D) the appliance will not get full voltage
💬 Discuss
✅ Correct Answer: (B) this can damage the domestic wiring due to overloading
📊 Physics
Q. Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this?

I.Diffusion
II.Refraction
III.Internal reflection
  • (A) I, II and III
  • (B) I and II
  • (C) II and III
  • (D) I and III
💬 Discuss
✅ Correct Answer: (C) II and III
📊 Physics
Q. Natural radioactivity was discovered by
  • (A) Marie Curie
  • (B) Ernest Rutherfor
  • (C) Henri Becquerel
  • (D) Enrico Fermi
💬 Discuss
✅ Correct Answer: (C) Henri Becquerel
📊 Physics
Q. Planets are
  • (A) luminous heavenly bodies revolving around a star
  • (B) non-luminous heavenly bodies
  • (C) luminous heavenly bodies that twinkle
  • (D) luminous heavenly bodies that do not twinkle
💬 Discuss
✅ Correct Answer: (B) non-luminous heavenly bodies
📊 Physics
Q. One nanometer is equal to
  • (A) 10^-6m
  • (B) 10^-8m
  • (C) 10^-9m
  • (D) 10^-5m
💬 Discuss
✅ Correct Answer: (C) 10^-9m
📊 Physics
Q. Mica is used in electrical appliances such as electric iron because mica is
  • (A) a good conductor of heat but a bad conductor of electricity
  • (B) a bad conductor of heat but a good conductor of electricity
  • (C) a good conductor of heat as well as electricity
  • (D) a bad conductor of heat as well as electricity
💬 Discuss
✅ Correct Answer: (A) a good conductor of heat but a bad conductor of electricity

Explanation: Mica is used in electrical appliances such as electric iron because mica is a good conductor of heat but a bad conductor of electricity.

📊 Physics
Q. It is easier to roll a barrel full of coal tar than to pull it because
  • (A) the full weight of the barrel comes into play when it is pulled
  • (B) the rolling friction is much less than the sliding friction
  • (C) more surface area of the barrel is in contact with the road when it is pulled
  • (D) coal tar is a liquid and it flows in the barrel when it is rolled
💬 Discuss
✅ Correct Answer: (B) the rolling friction is much less than the sliding friction

Explanation: When a body slides (moves with all its surface area in contact) over another body, the resistance faced is due to sliding friction. Hence rolling friction is less than the sliding friction. Thus it is easier to roll a barrel full of coal tar than to pull it.

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