Advertisements
Advertisements
प्रश्न
Write true or false for a given statement.
Waveforms of two different stringed instruments can be the same.
विकल्प
True
False
उत्तर
False.
Waveforms of two different stringed instruments cannot be the same.
APPEARS IN
संबंधित प्रश्न
Fill in the blank.
________ produces a sensation in ears.
List the measures that you will take when designing a sound-proof room.
Why are the waves mentioned by you not audible to us?
Which wave property determines loudness?
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.
At 20°C, the minimum distance of a person from a sound reflecting surface to hear an echo is :
How are the wave velocity V, frequency f and wavelength λ of a wave related? Derive the relationship.
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?
Draw a displacement-time graph for water wave.
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
