Sounds 1

1. Does a vacuum transmit sound waves?

Question 1 of 23

2. Which of the following is NOT a source of sound?

Question 2 of 23

3. In which of the following medium is sound transmitted slowest?

Question 3 of 23

4. Sound waves obey the laws of reflection?

Question 4 of 23

5. Which among the following is an application of pulse echo technique?

Question 5 of 23

6. Solids transmit sound at a speed of?

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7. Reflected sound is called (from an obstacle)?

Question 7 of 23

8. Sound wave is which type of a wave?

Question 8 of 23

9. How is sound energy propagated from a vibrating object?

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10. The velocity of sound in air:

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11. The speed of sound in air is about?

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12. Sound originates from vibrating bodies. True or False?

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13. Define reverberation?

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14. Why is a sound wave a longitudinal wave?

Question 14 of 23

15. The velocity of sound in salty water is?

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16. Sound travels faster in HOT air than in COLD air?

Question 16 of 23

17. The velocity of sound in fresh water is?

Question 17 of 23

18. The angle of reflection of a sound wave is equal to the angle of incidence?

Question 18 of 23

19. Why are concert halls and broadcasting studios made of walls of absorbent materials such as cotton wool or rubber?

Question 19 of 23

20. Which of the following is the most common use of reflection of sound?

Question 20 of 23

21. In which of the following medium is sound transmitted fastest?

Question 21 of 23

22. How do you calculate the distance in pulse echo technique?

Question 22 of 23

23. Which of the following is a factor affecting velocity of sound in air?

Question 23 of 23