<h2>The
velocity of a wave in a medium changes with the wavelength</h2>
Explanation:
Wave
It is the periodic disturbance in a medium.
Types of Wave
There are two types of wave in general depending upon their propagation through a substance.
• Mechanical
• Electromagnetic
Mechanical Wave
It is the kind of wave which needs medium to travel.
For example: Sound Wave
Electromagnetic Wave
Is that which can travel through medium as well as through vacuum. For example: Light
Characteristics of Wave
There are certain characteristics that each sound possesses. Let’s see.
Oscillation: It is the complete movement of particle about its mean position.
Amplitude: Is the maximum displacement of particle from its mean position in either direction (cm).It is denoted by ‘A’.
Frequency: It is the number of sound waves produced per second (Hertz).It is denoted by υ(nu)
Time Period: The time taken to complete one oscillation (sec).It is denoted by ‘T’.
Wavelength: The distance between two consecutive crest or trough (cm).It is denoted by λ(lambda).
Velocity of Wave: The speed with which sound travel (m/sec).It is denoted by ‘v’.
Relation between time period, frequency and velocity of wave
We have: frequency =velocity /wavelength
υ=c/λ
Velocity of wave depends upon :
frequency of wave
Wavelength of wave
Therefore , with change in wavelength , the velocity of a wave in medium changes .
