Moderate

Michelson interferometer can be used to measure:

Correct answer: D. Wavelength of light

  • A. Speed of sound
  • B. Wavelength of sound
  • C. Speed of light
  • D. Wavelength of light

Explanation

Michelson's Interferometer uses the phenomena of interference to measure the wavelength of light from a source.

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About Waves

Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.

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