Chapter 14, Problem 82A

To determine

The variation in the wavelength due to faster move of the finger in sink full of water.

Explanation of Solution

Introduction:

The number of the identical movement of the particle about some mean position in unit duration is called the frequency of the particle. The distance between the consecutive maximum or minimum position of the particle is called the wavelength of the particle.

The wavelength of the particles varies with the frequency of the motion. If the frequency becomes higher then the wavelength of the particle decreases and vice-versa.

The frequency of the finger increase due to the faster move in the sink. So, the wavelength of the circular waves in the sink full of water decreases.

Conclusion:

Therefore, the wavelength of the circular waves in the sink full of the water decreases due to faster move of the finger.