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A submarine emits a sonar pulse, which r...

A submarine emits a sonar pulse, which returns from underwater cliff in 1.02 s. If the speed of sound in salt water is `1531ms^-1` how far away is the cliff ?

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MBD-SOUND-Example
  1. What is the range of frequencies associated with : infrasound ?

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  2. What is the range of frequencies associated with: ultrasound?

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  3. A submarine emits a sonar pulse, which returns from underwater cliff i...

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  4. What is sound and how is it produced ?

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  5. Describe with the help of diagram, how compressions and rarefactions a...

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  6. Cite an experiment to show that sound need a material medium for its p...

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  7. Describe an experiment to show that sound need a material medium for i...

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  8. Describe an activity to show that sound is a mechanical wave and need ...

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  9. Why is sound wave called longitudinal wave?

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  10. Which characteristic of the sound help you to identify your friend by ...

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  11. Which characteristic of the sound help you to identify your friend by ...

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  12. Flash and thunder are produced simultaneously. But thunder is heard a...

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  13. A person has a hearing range from 20 Hz to 20 KHz. What is the typical...

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  14. Two children are at opposite ends of an aluminium rod. One strikes the...

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  15. The frequency of source of sound is 100 Hz. How many times does it vib...

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  16. Does sound follow the same laws of reflection as light does ? Explain.

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  17. When a sound is reflected from a distant object, an echo is produced. ...

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  18. Give two practical applications of reflection of sound waves.

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  19. A stone is dropped from the top of a tower 500 m high into a pond of w...

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  20. A sound wave travels at a speed of 339 ms^-1. If its wavelength is 1.5...

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