Advertisements
Advertisements
प्रश्न
What is the sound level for noise pollution?
एका वाक्यात उत्तर
उत्तर
The sound level above 120 dB causes noise pollution.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Distinguish between loudness and intensity of sound.
Write true or false for a given statement.
A ticking clock sound is heard late when heard through a metal.
What is sound ?
Define wavelength. Give its SI units.
What are infrasonics?
The distance between one crest and one trough of a sea wave is 4.5 m. If the waves are produced at the rate of 240/min, calculate the time period.
How is sound produced?
Distinguish between light and sound waves. What are the consequences of the large difference in the speed of sound and that of light? Briefly explain them.
What do you mean by the frequency of sound?
Name three animals which can hear ultrasonic vibrations.
