Recent questions in Chapter 12 Study of Sound

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Helium gas is filled in two identical bottles A and B. The mass of the gas in two bottles is 10g and 40g respectively.

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Hydrogen gas is filled in two identical bottles, A and B at the same temperature. The mass of hydrogen in

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Sunil is standing between two parallel walls. The wall closest to him is at a distance of 660m. If he shouts, he hears

asked Apr 14, 2022 in Chapter 12 Study of Sound by Doubtly (98.9k points)

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Nita heard the sound of lightning after 4seconds of seeing it. What was the distance of lightning from her?

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The speed of sound in air at 0°C is 332m/s. If it increases at the rate of 0.6m/s per degree,

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Where and why sound absorbing materials are used?

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What should be the dimensions and the shape of classrooms so that no echo can be produced there?

asked Apr 14, 2022 in Chapter 12 Study of Sound by Doubtly (98.9k points)

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Study the construction of the Golghumat at Vijapur and discuss the reasons for the multiple echoes produced there.

asked Apr 14, 2022 in Chapter 12 Study of Sound by Doubtly (98.9k points)

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What is an echo? What factors are important to get distinct echo?

asked Apr 14, 2022 in Chapter 12 Study of Sound by Doubtly (98.9k points)

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We cannot hear an echo produced in a classroom.

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The intensity of reverberation is higher in a closed and empty house.

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The roof of a movie theatre and a conference hall is curved.

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Fill in the blanks and explain.

asked Apr 14, 2022 in Chapter 12 Study of Sound by Doubtly (98.9k points)

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