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- A stone is dropped from the top of a tower 500 m high into a pond of w...
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- A sound wave travels at a speed of 339 m//s. If its wavelength is 1.5 ...
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- What is reverberation ? How can it be reduced ?
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- What is loudness of sound ? What factors does it depend on ?
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- Explain how bats use ultrasound to catch a prey.
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- How is ultrasound used for cleaning ?
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- Explain the working and application of a sonar.
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- Write the full name of SONAR. How will you determine the depth of a se...
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- Write full form of SONAR. List any two purposes for which, it is used ...
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- A sonar device on a submarine sends out a signal and receives an echo ...
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- Explain how defects in a metal block can be detected using ultrasound.
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- Explain how the human ear works.
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- Name two different types of waves. Give an experiment to explain the ...
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- Name two different types of waves. Define transverse waves.
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- Name two different types of waves. What should be the conditions for...
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- Name two different types of waves. Give examples of transverse waves.
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- Name two different types of waves. Define crest and trough.
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- What are longitudinal waves and transverse waves ?
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- Arrange an experiment to demonstrate the formation of longitudinal wav...
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- Define a compression and a rarefaction
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