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8th Standard English Medium Science Subject T3 - Sound Book Back 1 Mark Questions with Solution Part - I Question Bank Software Jun-15 , 2021

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8th Standard English Medium Science Subject T3 - Sound Book Back 1 Mark Questions with Solution Part - I

8th Standard English Medium Science Subject T3 - Sound Book Back 1 Mark Questions with Solution Part - I

8th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5

  1. Sound waves travel very fast in

    (a)

    air

    (b)

    metals

    (c)

    vacuum

    (d)

    liquids

  2. The amplitude of the sound wave decides its

    (a)

    speed

    (b)

    pitch

    (c)

    loudness

    (d)

    frequency

  3. Find the odd one out.

    (a)

    Harmonium

    (b)

    Flute

    (c)

    Nadaswaram

    (d)

    Violin

  4. Noise is produced by

    (a)

    vibrations with high frequency.

    (b)

    regular vibrations.

    (c)

    regular and periodic vibrations.

    (d)

    irregular and non-periodic vibrations.

  5. The range of audible frequency for the human ear is

    (a)

    2 Hz to 2000 Hz

    (b)

    20 Hz to 2000 Hz

    (c)

    20 Hz to 20000 Hz

    (d)

    200 Hz to 20000 Hz

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