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MODERN PUBLICATION-SOUND-EXERCISE
- What is ultrasound?
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- Write the full form of SONAR.
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- Name the disease that can be caused by UV rays.
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- If 20 waves are proeduced per second. What is the frequency in Hertz?
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- Give classification of waves on the basis of movement of particles.
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- What are the important properties of a medium required for propagatio...
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- Give two examples in which a vibrating object produces sound.
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- What is a Stethoscope? How does it work?
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- What is the use of a megaphone?
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- Give some properties of ultrasound.
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- What are the uses of ultrasonic sound?
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- Make a list of different types of musical instruments and find the par...
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- Define the term time-period of a wave.
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- Give relation among the speed of sound v, wavelength lambda and freque...
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- A sound wave travels at a speed of 339 ms^-1. If its wavelength is 1.5...
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- An echo is returned in 6 seconds. What is the distance of the reflecti...
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- 20 waves pass through a point in 2 seconds. If the distance between on...
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- 20 waves pass through a point in 2 seconds. If the distance between on...
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- Sound is produced when school bell is struck with a hammer. Why?
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- Which characteristic of the sound help you to identify your friend by ...
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