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प्रश्न
Select the correct alternative :
We can hear sound of frequency
विकल्प
10 Hz
500 Hz
100,000 Hz
50,000 Hz
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उत्तर
500 Hz
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संबंधित प्रश्न
What is loudness of sound? What factors does it depend on?
Fill in the blank.
The pitch of a sound depends on its ________.
The sound of an explosion on the surface of a lake is heard by a boat man 100 m away and by a diver 100 m below the point of explosion.
(i) Who would hear the sound first: boatman or diver?
(ii) Give a reason for your answer in part (i).
(iii) If sound takes time t to reach the boatman, how much time approximately does it take to reach the diver?
A continuous disturbance is created on the surface of water in a ripple tank with a small piece of cork floating on it. Describe the motion of the cork. What does the motion of the cork tell about the disturbance?
How do the following factor affect the speed of sound in air?
Moisture in air.
What is the value of sound of room temperature?
Vibrations in a body produce ______.
Write any two uses of ultrasonic sound.
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
