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प्रश्न
Can sound travel through solids and liquids ? In which of these two does it travel faster ?
उत्तर
Sound travels with the highest speed in - solids.
and Sound travels with the lowest speed in - gases.
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संबंधित प्रश्न
A stone is dropped from the top of a tower 500 m high into a pond of water at the base of the tower. When is the splash heard at the top? Given, g = 10 m s−2 and speed of sound = 340 m s−1.
Guess which sound has a higher pitch:
What is meant by supersonic speed?
Which of the following travels slowest in air and which one fastest? Supersonic aircraft, Light, Sound
Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm.
Numerical problem.
A stone is dropped from the top of a tower 750 m high into a pond of water at the base of the tower. Calculate the number of seconds for the splash to be heard? (Given g = 10 m s–2 and speed of sound = 340 m s–1)
A source of sound is travelling with a velocity 40 km/h towards an observer and emits a sound of frequency 2000 Hz. If the velocity of sound is 1220 km/h, then the apparent frequency heard by the observer is _____.
Establish the relationship between the speed of sound, its wavelength and frequency. If the velocity of sound in air is 340 m s–1, calculate
(i) wavelength when the frequency is 256 Hz.
(ii) frequency when the wavelength is 0.85 m
When temperature increases the speed of sound ______.
Numerical problems:
A Sound wave travels at a speed of 344 ms-1. If the wavelength is 1.5 cm, what is the frequency of the Wave? Will it be audible?
