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Class 10 Physics · Chapter 4 · Test 1

Test 1: Production, Propagation, Speed and Characteristics of Sound

MCQs

29 questions · 25 min · 29 marks

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Sample questions

The first 5 of 29. Try each one, then tap to see the answer.

  1. Question 1

    What is required for the production of sound?

    • AA vacuum
    • BVibrations of a medium
    • COnly air
    • DLight waves
    Show answer

    Answer: B

    Sound is produced by vibrating objects; the vibrations make the air around them vibrate.

  2. Question 2

    An example of a longitudinal wave is:

    • Alight wave
    • Bwater wave
    • Csound wave
    • Dradiowave
    Show answer

    Answer: C

    Sound travels as a longitudinal wave of compressions and rarefactions.

  3. Question 3

    In which medium does sound travel the fastest?

    • AGases
    • BLiquids
    • CSolids
    • DVacuum
    Show answer

    Answer: C

    Sound moves 5 times faster in liquids and 15 times faster in solids than in gases; it cannot travel in vacuum.

  4. Question 4

    What is the approximate speed of sound in air?

    • A150 m s⁻¹
    • B330-350 m s⁻¹
    • C500 m s⁻¹
    • D1,000 m s⁻¹
    Show answer

    Answer: B

    The speed of sound through air is approximately 330-350 m s⁻¹.

  5. Question 5

    Sound is produced by:

    • Avibrating objects
    • Bstationary objects
    • Clight waves
    • Dvacuum
    Show answer

    Answer: A

    When an object vibrates, it makes the air around it vibrate as well.

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