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In Fig. , A, B, C and D represent the te...

In Fig. , A, B, C and D represent the test tubes each of height 20 cm which are filled with water up to heights of 12 cm, 14 cm, 16 cm and 18 cm respectively. If a vibrating tuning fork is placed over the mouth of test tube D, a loud sound is heard.

Describe the observations with the tubes A, B and C when the vibrating tuning fork is placed over the mouth of these tubes.

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No loud sound is heard with the tubes A and C, but a loud sound is heard with the tube B
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ICSE-SOUND-EXERCISE -7(B)
  1. The diagram in Fig. shows the displacement time graph of a vibrating b...

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  2. The diagram in Fig. shows the displacement time graph of a vibrating b...

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  3. A tuning fork is vibrating in air. State whether the vibrations are na...

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  4. The diagram below shows the displacement-time graph for a vibrating bo...

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  5. What are forced vibrations ? Give one example to illustrate your answe...

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  6. When the stem of a vibrating tuning fork is gently pressed on the surf...

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  7. State two differences between natural and forced vibrations.

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  8. What is meant by Resonance ?

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  9. State the condition for the resonance to occur.

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  10. Complete the following sentence : Resonance is a special case of ........

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  11. State two differences between the forced and resonant vibrations.

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  12. Why is a loud sound heard at resonance ?

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  13. Fig. shows two tuning forks A and B of the same frequency mounted on...

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  14. A vibrating tuning fork, held over an air column of a given length wit...

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  15. In Fig. , A, B, C and D represent the test tubes each of height 20 cm ...

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  16. In Fig. , A, B, C and D represent the test tubes each of height 20 cm ...

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  17. In Fig. , A, B, C and D represent the test tubes each of height 20 cm ...

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  18. Marching soldiers are asked to break their steps while crossing a brid...

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  19. Explain, why stringed musical instruments, like the guitar, are provid...

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  20. How do you tune your radio set to a particular station ? Name the phen...

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