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Explain how bats use ultrasound to catch...

Explain how bats use ultrasound to catch a prey.

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  1. What is reverberation ? How can it be reduced ?

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  2. What is loudness of sound ? What factors does it depend on ?

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  3. Explain how bats use ultrasound to catch a prey.

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  4. How is ultrasound used for cleaning ?

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  5. Explain the working and application of a sonar.

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  6. Write the full name of SONAR. How will you determine the depth of a se...

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  7. Write full form of SONAR. List any two purposes for which, it is used ...

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  8. A sonar device on a submarine sends out a signal and receives an echo ...

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  9. Explain how defects in a metal block can be detected using ultrasound.

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  10. Explain how the human ear works.

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  11. Name two different types of waves. Give an experiment to explain the ...

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  12. Name two different types of waves. Define transverse waves.

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  13. Name two different types of waves. What should be the conditions for...

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  14. Name two different types of waves. Give examples of transverse waves.

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  15. Name two different types of waves. Define crest and trough.

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  16. What are longitudinal waves and transverse waves ?

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  17. Arrange an experiment to demonstrate the formation of longitudinal wav...

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  18. Define a compression and a rarefaction

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  19. Obtain a relation between speed, frequency and wavelength of a wave.

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  20. What are the major points of difference between sound waves and light ...

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