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ICSE Class 7 Physics Question 13 of 42

Sound — Question 13

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Question

Question 13

Define the following terms:

  1. Amplitude

  2. Time period

  3. Frequency

Answer

  1. Amplitude (a) — The maximum displacement of a wave on either side of its mean position, is called the amplitude of wave.

  2. Time period (T) — The time taken by a wave to complete its one vibration is called the time period of the wave.

  3. Frequency (f or n) — The number of vibrations produced by a source of sound wave in one second is called the frequency of the wave.