Advertisements
Advertisements
प्रश्न
The maximum speed of vibrations which produce audible sound will be in :
विकल्प
dry air
sea water
ground glass
human blood
Advertisements
उत्तर
Velocity of the longitudinal wave is directly proportional to the density of the medium.
(c) Ground glass.
APPEARS IN
संबंधित प्रश्न
Guess which sound has a higher pitch:
What is the speed of sound :
(a) in air?
(b) in water?
(c) in iron?
Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm.
If the speed of a wave is 340 m/s and its frequency is 1700 Hz, then λ for this wave in cm will be :
A man is kidnapped, blindfolded and imprisoned in a big room. How could the man tell if he was in : a village
The drawing shows a ship 800 m from a cliff. A gun is fixed on the ship. After 5 seconds the people at the front of the ship hear the sound of the gun again.
(a) What is the name of this effect ?
(b) What happens to the sound at the cliff ?
(c) How far does the sound travel in 5 seconds ?
(d) Calculate the speed of sound.
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 _____.
The velocity of sound is independent of temperature.
A strong sound signal is sent from a ship towards the bottom of the sea. It is received back after 1s. What is the depth of sea given that the speed of sound in water 1450 ms–1?
The speed of sound in a gaseous medium depends on ______.
