20 waves pass through a point in a medium in 5 seconds. What is the time required to pass one wave?
Correct answer: A. 1/4 sec
- A. 1/4 sec
- B. 4 sec
- C. 1/2 sec
- D. 2 sec
Explanation
A. 20/5 gives the frequency (waves per second) and the inverse of this gives the time period for each wave, which is ¼ seconds. f = no. of waves/ second = 20/5 = 4 Hzt = 1/fThus, t = ¼ s
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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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