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प्रश्न
What do you understand by the term sound energy?
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उत्तर
“It is a form of energy that produces the sensation of hearing in our ears.” Sound is produced when a body vibrates.
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संबंधित प्रश्न
Fill in the blank.
We can hear sounds of frequency in the range of _______
What are longitudinal waves and transverse waves? Explain with the help of labelled diagrams.
In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below :
Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz.
(a) What happens to the air in-between Anhad and the loudspeaker ?
(b) Explain how Anhad receives sound in both ears.
State the speed of (i) light and (ii) sound in air?
State the effect of pressure on the speed of sound in air.
A sound wave travels 2000 m in 8 s. What is the velocity of the sound?
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
Draw a curve showing density or pressure variations with respect to distance for a disturbance produced by sound. Mark the position of compression and rarefaction on this curve. Also, define wavelengths and time periods using this curve.
Sound cannot travel through ______.
Explain the types of mechanical waves.
