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प्रश्न
Which characteristics of the sound helps you to identify your friend by his voice while sitting with others in a dark room?
उत्तर
Quality of sound is that characteristic which helps us identify a particular person. Sound produced by two persons may have the same pitch and loudness, but the quality of the two sounds will be different.
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संबंधित प्रश्न
Fill in the blank.
________ produces a sensation in ears.
What are ultrasonics? Can you hear the ultrasonic sound?
What is the nature of sound waves in air?
What is the vacuum? Explain why, sound cannot travel through vacuum?
In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below :
Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz.
(a) What happens to the air in-between Anhad and the loudspeaker ?
(b) Explain how Anhad receives sound in both ears.
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?
Describe briefly an experiment to prove that vibrating bodies produce sound.
The smoke from the gun barrel is seen 2 second before the explosion is heard. If the speed of sound in air is 350 ms-1, calculate the distance of observer from the gun.
A list of mediums is given below
- Wood
- Water
- Air
- Vacuum
In which of these mediums can sound travel?
What is a wave?
