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MBD -HARYANA BOARD-SOUND-Example
- A person is listening to a tone of 500 Hz sitting at a distance of 450...
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- Distinguish between loudness and intensity of sound.
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- In which of the three media : air, water or iron , does sound travel t...
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- An echo is returned in 3 s. What is the distance of the reflecting sur...
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- Why are the ceilings of concert halls curved ?
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- What is the audible range of the average human ear ?
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- What is the range of frequencies associated with (a) infra sound (...
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- What is the range of frequencies associated with (a) infra sound (...
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- A submarine emits a sonar pulse, which returns from underwater cliff i...
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- What is sound and how is it produced ?
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- Describe with the help of a diagram, how compressions and rarefactions...
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- Cite an experiment to show that sound needs a material for its propaga...
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- Cite an experiment to show that sound needs a material for its propaga...
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- Does sound need a medium to travel? Describe an activity to show that ...
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- Why is sound wave called a longitudinal wave ?
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- Which characteristic of the sound helps you to identify your friend by...
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- Which characteristic of the sound helps you to identify your friend by...
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- Flash and thunder are produced simultaneously. But thunder is heard a ...
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- A person has a hearing range from 20 Hz to 20 kHz. What are the typica...
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- Two children are at opposite ends of an aluminium rod. One strikes the...
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