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Asked in MDCAT Test Series 50 — Waves

20 waves pass through a point in a medium, in 5 seconds. What is the time required for one wave to pass?

Correct answer: A. 1/4 sec

  • A. 1/4 sec
  • B. 4 sec
  • C. 1/2 sec
  • D. 2 sec

Explanation

The following is the solution:If it takes 5 seconds for 20 waves to passthen the time taken for one wave to pass will be xUsing simple ratio method:5 : 20x : 120x=5x=5/20x=1/4

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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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