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Dolphins and whales communicate under wa...

Dolphins and whales communicate under water using sound. They can see each other with their eyes and also by producing sound.
Dolphins and whales are able to communicate in water because sound

A

can travel in water

B

travels fastest in water

C

does not scatter in water

D

does not lose energy in water

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BEIITIANS-SOUND-HOTS Worksheet
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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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