Frequency is the inverse of __________?
Correct answer: C. Time Period
- A. Velocity
- B. Stress
- C. Time Period
- D. Gravity
Explanation
Frequency and time period are reciprocals: f = 1/T, where f is measured in hertz (Hz) and T in seconds (s). Thus a shorter time period means a higher frequency. The common mistake is choosing velocity, since wave speed is related to frequency by v = fλ, but it is not its inverse.
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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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