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Underwater detection of objects is possi...

Underwater detection of objects is possible in navigation because

A

underwater objects can also produce sound

B

the speed of sound is the highest in water

C

the energy of sound increases in water

D

sound can travel through water

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BEIITIANS-SOUND-HOTS Worksheet
  1. John places an alarm clock inside a box as shown in the given figure. ...

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  2. Which part of a tabla vibrates to produce sound?

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  3. Which of the following effects cannot be produced by a force?

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  4. Hearing impiarment is caused by either excessive noise or injury, dise...

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  5. Jackhammer is an electric device that is used to drill on hard surface...

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  6. In medical sciences, doctors use ultrasound devices to investigate and...

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  7. Jackhammer is an electric device that is mainly used for drilling on a...

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  8. Telephone operators answer the calls on telephones. A sound is easily ...

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  9. Humans are able to hear because of the vibration of a stretched thin m...

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  10. There is a hollow glass partition in a room. It divides the room in tw...

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  11. An electric drum is enclosed inside a specially designed closed glass ...

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  12. Dolphins and whales communicate under water using sound. They can see ...

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  13. Microphone is an electrical device that is used to amplify a human voi...

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  14. Astronauts in deep space use radio devices to communicate with each ot...

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  15. Underwater detection of objects is possible in navigation because

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  16. Astronauts use walkie-talkie to communicate to each other in deep spac...

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  17. When stretched thread is plucked, it starts a vibrating. The given inf...

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  18. The presence of excessive and the surroundings may cause

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  19. Which of the following preventive measures cannot be attributed to roa...

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