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प्रश्न
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उत्तर
The propagation of wave through a medium due to the repeated oscillatory motion of the particles of the medium about their mean position, the motion being handed over from one particle of the medium to the next particle progressively is referred to as wave motion.
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संबंधित प्रश्न
Name the characteristic of sound in relation to its waveform.
Name the waves which are used in sonar to find the depth of a sea. Give one reason for their use.
What is the shape of a soundboard kept behind the speaker on the stage of a big hall ?
What is a megaphone ? Name the principle on which a megaphone works.
Write the approximate value of the speed of sound in air.
How are bats able to fly in the dark?
What do you understand by the ‘Echolocation system of Dolphins’?
What are fishing boats?
Match the following:
| 1. | Stethoscope | a. | Repeated reflections |
| 2. | Echogram | b. | Multiple reflections |
| 3. | SONAR | c. | Ultrasonic waves |
| 4. | Reverberation | d. | Speed of underwater objects |
