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Waves

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Physics of Sound

Oscillations
Waves
  1. The equation of a wave is represented by:
    y = 104sin 100 ƒ +
    x
    10

    The velocity of the wave will be
    1. 100 m/s
    2. 250 m/s
    3. 750 m/s
    4. 1000 m/s
Correct Option: D

y = 10-4 sin 100t -
x
10

ν = 100 sec–1, λ = 10 m
v = λν = 10 × 100 = 1000 m/s


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