Asked in ETEA MDCAT 2005 2005Moderate

The energy carried by water waves is proportional to the:

Correct answer: B. Amplitude squared

  • A. Wavelength squared
  • B. Amplitude squared
  • C. Square root of the wavelength
  • D. Square root of the amplitude

Explanation

Water is a transverse mechanical wave so we know that the power and energy carried by the wave is directly proportional to the square of the amplitude. A) The energy carried by water waves is independent of the square of the wavelength. B) The energy carried by water waves is directly proportional to the square of the amplitude. C) The energy carried by water waves is independent of the square root of the wavelength. D) The energy carried by water waves is directly proportional to the square of the amplitude, not the square root. Therefore, B is the correct answer.

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About Progressive Waves

Progressive waves transfer energy through a medium or space while particles oscillate about their equilibrium positions. The work includes amplitude, wavelength, frequency, period, phase difference, wave speed and the progressive wave equation, while distinguishing travelling waves from stationary waves, where the pattern has fixed nodes and antinodes.

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