Description: Practice Class 10 Physics Chapter 11 MCQs on Sound. These important objective questions are prepared according to the FBISE exam pattern and include conceptual, numerical, and knowledge-based MCQs.
1. Sound is produced due to:
2. Sound waves are:
3. Sound requires a ______ for propagation.
4. The speed of sound is maximum in:
5. The unit of frequency is:
6. Audible sound for humans lies between:
to 
B)
to 
C)
to 
D)
to 
7. Sound having frequency greater than is called:
8. Sound having frequency less than is called:
9. The quality of sound depends upon:
10. Loudness of sound depends upon:
11. Pitch of sound depends upon:
12. The repetition of sound due to reflection is called:
13. Echo is produced due to:
14. The minimum distance required to hear a distinct echo is about:
B)
C)
D)
15. SONAR stands for:
16. SONAR uses:
17. The speed of sound in air at room temperature is approximately:
B)
C)
D)
18. The intensity of sound depends upon:
19. A shrill sound has:
20. The time interval between original sound and echo should be at least:
B)
C)
D)
21. Which instrument is used to detect underwater objects?
22. Noise pollution can be reduced by:
23. The unit used to measure sound intensity level is:
24. The sound produced by regular vibrations is called:
25. The sound produced by irregular vibrations is called:
26. Which property distinguishes two sounds of same pitch and loudness?
27. Bats locate objects by using:
28. The phenomenon in which sound bends around obstacles is called:
29. The speed of sound in vacuum is:
B)
C)
D) Zero
30. Which characteristic of sound is related to energy?
31. If frequency increases, pitch becomes:
32. Which of the following is an application of ultrasound?
33. The device used to convert sound energy into electrical energy is:
34. A loudspeaker converts electrical energy into:
35. The to-and-fro motion of particles in sound waves produces:
36. Which sound wave has the shortest wavelength?
37. The human ear is most sensitive to frequencies around:
B)
C)
D)
38. Which phenomenon explains the working of stethoscope?
39. Sound travels fastest in:
40. If the amplitude of a sound wave increases, loudness will:
41. The product of frequency and wavelength gives:
42. Which property of sound helps us distinguish voices of different persons?
43. Which of the following is not a mechanical wave?
44. A person hears thunder after seeing lightning because:
45. Which instrument measures the intensity level of sound?
46. Echoes are commonly heard in:
47. Noise pollution mainly affects:
48. The speed of sound in water is approximately:
B)
C)
D)
49. Which type of waves are produced in air during sound propagation?
50. Ultrasonic waves are widely used in: