CBSE Class 11 Physics Exam-Oriented MCQs with Explanations
CBSE Class 11 Physics Exam-Oriented MCQs with Explanations
Class: 11
Subject: Physics
Section: Exam-Focused MCQs for CBSE Class 11 Physics
Topic: CBSE Class 11 Physics Exam-Oriented MCQs with Explanations
Board: CBSE Board Examination (NCERT Based)
Subject: Physics
Section: Exam-Focused MCQs for CBSE Class 11 Physics
Topic: CBSE Class 11 Physics Exam-Oriented MCQs with Explanations
Board: CBSE Board Examination (NCERT Based)
Q1. Which of the following is a scalar quantity?
Answer: D) Mass
Mass has magnitude only and no direction, hence it is a scalar quantity.
Mass has magnitude only and no direction, hence it is a scalar quantity.
Q2. The dimensional formula of acceleration is:
Answer: B) LT⁻²
Acceleration = change in velocity per unit time.
Acceleration = change in velocity per unit time.
Q3. The area under a velocity–time graph represents:
Answer: C) Displacement
Area under v–t graph gives displacement; distance only if velocity is positive.
Area under v–t graph gives displacement; distance only if velocity is positive.
Q4. Which law of motion defines force?
Answer: B) Second law
Force is rate of change of momentum.
Force is rate of change of momentum.
Q5. Unit of momentum is:
Answer: A) kg m s⁻¹.
Q6. Work done is zero when force is:
Answer: C — Cos 90° = 0.
Q7. SI unit of energy:
Answer: B
Q8. Gravitational potential energy depends on:
Answer: B
Q9. Pressure =
Answer: C
Q10. Young’s modulus is the ratio of:
Answer: A
Q11. Temperature SI unit:
Answer: B
Q12. RMS speed depends on:
Answer: B
Q13. First law of thermodynamics represents:
Answer: B
Q14. Restoring force in SHM is proportional to:
Answer: A
Q15. Time period of simple pendulum depends on:
Answer: B
Q16. Wave speed is given by:
Answer: A
Q17. Sound waves are:
Answer: B
Q18. Pitch of sound depends on:
Answer: B
Q19. Beats are produced due to:
Answer: B
Q20. Doppler effect is related to:
Answer: B
Q21. Unit of frequency:
Answer: A
Q22. Audible range for humans:
Answer: B
Q23. Echo is due to:
Answer: B
Q24. Minimum distance to hear echo distinctly is:
Answer: C
Q25. Unit of sound intensity is:
Answer: B
Q26. Loudness depends on:
Answer: B
Q27. Noise is:
Answer: C
Q28. Most elastic material is:
Answer: B
Q29. Dimensional formula of energy:
Answer: A
Q30. Sound cannot travel in:
Answer: D) Vacuum
Sound needs a material medium for propagation.
Sound needs a material medium for propagation.
