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प्रश्न
Can you hear each other in a dark room?
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उत्तर
Yes, we can hear in the darkroom.
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संबंधित प्रश्न
Select the correct alternative :
We can hear sound of frequency
Name the characteristic which differentiates two sounds of the same pitch and same loudness.
In fig. 2 two musical notes of the same pitch and same loudness are played on a violin and on a piano. Their wave forms are as shown in the diagram below. Explain why the wave patterns are different.
Describe briefly an experiment to prove that vibrating bodies produce sound.
The distance between three consecutive crests of wave is 60 cm. If the waves are produced at the rate of 180/ min, calculate:
- wavelength
- time period
- wave velocity.
Consider the statement given below and choose the correct option.
Assertion: When lightning strikes, the sound is heard a little after the flash is seen.
Reason: The velocity of light is greater than that of the sound.
Why does an empty vessel produce more sound than a filled one?
An earthquake produces which kind of sound before the mainshock wave begins
Assertion: The sound of thunder is heard a little later than the flash of light.
Reason: The speed of sound is much less than the speed of light.
