Speed of a Wave

Q.

How do sound waves travel?

Q. In which of the following medium, sound travels the fastest?

1. Liquids
2. Solids
3. Gases
4. Vacuum

Q.

State the two factors on which the speed of a sound wave traveling in a medium depends?

Q.

If the wavelength of a sound wave is 40 cm and the time period T = 0.005 s, how many seconds will it take to travel 4 km?

1. 5 seconds

2. 10 seconds

3. 20 seconds

4. 50 seconds

Q. Find the wavelength of a sound wave if its speed is 800 m/s and frequency is 40 Hz.

1. 10 m
2. 20 m
3. 40 m
4. 50 m

Q. Which of the following statements is true?

1. The speed of sound increases with an increase in temperature of the medium.
2. The speed of sound is the same in every medium.
3. Sound travels faster in liquids than in solids.
4. The speed of sound decreases with an increase in temperature of the medium.

Q.

how is possible the sound go to fast in solid