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प्रश्न
What are ultrasonics? Can you hear the ultrasonic sound?
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उत्तर
Sounds of frequency higher than 20,000 Hz are called the ultrasonics. We cannot hear the ultrasonic sounds.
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संबंधित प्रश्न
Define time period.
The longitudinal waves travel in a coiled spring at a rate of 4 m/s. The distance between two consecutive compressions is 20 cm. Find :
(i) Wavelength of the wave (ii) Frequency of the wave
Which of the following can produce longitudinal waves as well as transverse waves under different conditions?
Define the term wave velocity. Write its S.I. unit.
Answer the following question :
Can sound travel in vacuum?
Define sound ranging.
Name the factors on which the speed of sound depends.
What cause sound? Why do we require a material medium for the transmission of sound?
Describe with diagram, how compressions and rarefactions are produced.
