
Explain the following terms
(A) Amplitude
(B) Wavelength
(C) Frequency
Answer
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Hint: For any vibrating particle, the term amplitude means the maximum displacement from the mean position, the wavelength is the distance travelled in a complete vibration. Similarly, the frequency is the number of complete vibrations per second.
Complete answer:
For any particle that is moving in a periodic motion, that parameters of its motion can be determined by a few common terms. They are the amplitude, frequency, and the wavelength.
A) Amplitude: The amplitude of any periodic motion is the maximum displacement that a particle suffers from the initial position during the vibration. It is denoted by the letter A and has the dimension of length.
B) Wavelength: Wavelength of a wave is the distance between two similar points in a wave. For example, wavelength of a wave can be taken as the distance between two peaks or two troughs in a wave. It is denoted by and has the dimension of length.
C) Frequency: The number of complete vibrations that a particle performs per second is called the frequency of the vibration. It is denoted by the letter and has the dimension of time inverse and the SI the unit of frequency is given by Hertz (Hz). The frequency is related to the wavelength as, where is the speed of the wave.
Note:
A few examples of the periodic motion are the simple harmonic motion like the motion of a pendulum or the vibration of atoms about their mean position. We can calculate the various parameters from their equations.
Complete answer:
For any particle that is moving in a periodic motion, that parameters of its motion can be determined by a few common terms. They are the amplitude, frequency, and the wavelength.
A) Amplitude: The amplitude of any periodic motion is the maximum displacement that a particle suffers from the initial position during the vibration. It is denoted by the letter A and has the dimension of length.
B) Wavelength: Wavelength of a wave is the distance between two similar points in a wave. For example, wavelength of a wave can be taken as the distance between two peaks or two troughs in a wave. It is denoted by
C) Frequency: The number of complete vibrations that a particle performs per second is called the frequency of the vibration. It is denoted by the letter
Note:
A few examples of the periodic motion are the simple harmonic motion like the motion of a pendulum or the vibration of atoms about their mean position. We can calculate the various parameters from their equations.
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