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SURA PUBLICATION-ACOUSTICS-ADDITIONAL QUESTIONS & ANSWERS (FILL IN THE BLANKS (COVERS THE WHOLE UNITS))
- Bats can detect waves.
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- Sound waves requires a for propagation.
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- Light waves are .
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- The wavelength of sound waves ranges from .
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- The wavelength of light waves ranges from .
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- Two types of velocity are velocity and velocity.
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- SI unit of velocity is .
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- The velocity with which the particles of a medium vibrate in order to ...
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- The velocity with which the wave travels through a medium is called .
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- The distance travelled by a sound wave in is called the velocity of t...
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- The speed of sound is directly proportional to the square root of the ...
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- Velocity of sound in solids decreases as the increases.
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- When sound is reflected from a convex surface, the· reflected waves ar...
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- When sound is reflected from a concave surface, the reflected waves ar...
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- Many halls are designed with reflecting surfaces to required to focus...
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- In surfaces, sound from one focus will always be reflected to the oth...
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- What is persistences of hearing?
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- The minimum time interval between the two sound is .
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- The minimum distance required to hear an echo is part of the magnitud...
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- The principle of echo is used in ultrasonography.
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