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BITSAT 2010
Exam
BITSAT
Year
2010
Subject
Physics
Chapter
Waves and Sound

BITSAT 2010 · Physics · Waves and Sound

A source of sound produces waves of wavelength 60 cm when it is...

A source of sound produces waves of wavelength 60cm60 \mathrm{ cm} when it is stationary. If the speed of sound in air is 320ms−1320 \mathrm{ m} \mathrm{ s}^{-1} and source moves with speed 20ms−1,20 \mathrm{ m} \mathrm{ s}^{-1}, the wavelength of sound in the forward direction will be nearest to

Options

  1. A56cm56 \mathrm{ cm}
  2. B60cm60 \mathrm{ cm}
  3. C64cm64 \mathrm{ cm}
  4. D68cm68 \mathrm{ cm}

Correct answer

A. 56cm56 \mathrm{ cm}

Step-by-step solution

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