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Physics important 10 questions

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📘 Physics MCQ Test Paper

1. What is the SI unit of force?

✔ Answer: B — Force = mass × acceleration → Newton

2. Speed of light in vacuum is approximately?

✔ Answer: B — Universal constant

3. Which law explains action and reaction?

✔ Answer: C — Newton’s Third Law

4. Unit of electric current?

✔ Answer: C — Ampere

5. Which particle has no charge?

✔ Answer: C — Neutron

6. Formula for kinetic energy?

✔ Answer: C — ½mv²

7. Which device converts AC to DC?

✔ Answer: B — Rectifier

8. Unit of frequency?

✔ Answer: A — Hertz

9. Which mirror is used in headlights?

✔ Answer: C — Concave mirror

10. What causes tides?

✔ Answer: D — Gravitational pull

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