Define the following terms and state their SI units : (a) Wavelength (b) Time period (c) Amplitude. Establish the relation V = vk, where the symbols have their usual meanings


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(a) Wavelength : It is defined as the distance travelled by a wave during the time a particle of the medium completes one vibration. It is denoted by k. Its SI unit is metre.
(b) Time period : It is defined as the time by a vibrating particle to complete one vibration. It is denoted by T. Its SI unit is second.
© Amplitude : It is defined as the maximum displacement produced in the vibrating particle on either side of the mean position. It is denoted by A. Its SI unit is metre
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We know that, wavelength k is the distance covered by the wave during the time a particle of the medium completes one vibration i.e., T.