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10th Standard English Medium Science Subject Acoustics Book Back 4 Mark Questions with Solution Part - I Question Bank Software Jun-12 , 2021

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10th Standard English Medium Science Subject Acoustics Book Back 4 Mark Questions with Solution Part - I

10th Standard English Medium Science Subject Acoustics Book Back 4 Mark Questions with Solution Part - I

10th Standard

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Science

Time : 00:30:00 Hrs
Total Marks : 20
    5 x 4 = 20

  1. Explain why, the ceilings of concert halls are curved.

  2. A sound wave has a frequency of 200 Hz and a speed of 400 m s–1 in a medium. Find the wavelength of the sound wave.

  3. A person who is sitting at a distance of 400 m from a source of sound is listening to a sound of 600 Hz. Find the time period between successive compressions from the source?

  4. A man is standing between two vertical walls 680 m apart. He claps his hands and hears two distinct echoes after 0.9 seconds and 1.1 second respectively. What is the speed of sound in the air?

  5. A strong sound signal is sent from a ship towards the bottom of the sea. It is received back after 1s. What is the depth of sea given that the speed of sound in water 1450 m s–1?

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