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What are mechanical waves ?...

What are mechanical waves ?

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Explore conceptually related problems

Mechanical waves are

(A) : The sky waves are not used in the transmission of television signals. (R) : Sky waves are mechanical waves.

Why are sound waves called mechanical waves ?

Transverse mechanical waves cannot be propagated through

What is a wave ? What are elastic waves ?

(A): Transverse mechanical waves can not propagates in liquids and gases. (R): Liquids and gases flow when acted on by shearing stress, they can not sustain shear stress

What kind of mechanical waves exist (a) Inside water? (b) On the surface of water?

Choose the correct statement about the mechanical wave.

The radio and TV programs, telecast at the studio, reach our antenna by wave motion. Is it a mechanical wave or nonmechanical ?

(A): Both transverse and longitudinal mechanical waves can travel through solids, whereas only longitudinal mechanical waves can travel through gases. (R): Gases do not have rigidity modulus.

ICSE-SOUND-EXERCISE -7(A)
  1. What are mechanical waves ?

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  2. Define the following terms in relation to a wave : amplitude

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  3. Define the following terms in relation to a wave : frequency

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  4. Define the following terms in relation to a wave : wavelength

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  5. Define the following terms in relation to a wave : wave velocity.

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  6. A wave passes from one medium to another medium. Mention one property ...

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  7. A wave passes from one medium to another medium. Mention one property ...

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  8. State two factors on which the speed of a wave travelling in a medium ...

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  9. State two differences between light and sound waves.

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  10. What do you mean by reflection of sound ? State one condition for the ...

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  11. What is meant by an echo ? State two conditions necessary for an echo ...

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  12. A man is standing at a distance of 12 m from a cliff. Will he be able ...

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  13. State two applications of echo.

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  14. Explain how the speed of sound can be determined by the method of echo...

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  15. State the use of echo by a bat, dolphin and fisherman.

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  16. How do bats avoid obstacles in their way, when in flight?

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  17. What is meant by sound ranging ? Give one use of sound ranging,

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  18. Name the waves used for sound ranging. State one reason for their use....

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  19. What is the principle on which SONAR is based ?

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  20. State the use of echo in medical field.

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