Chapter 9, Problem 34R

To determine

The correct option.

Answer to Problem 34R

The correct option is D.

Explanation of Solution

Introduction:

Frequency is inversely proportional to wavelength.

If frequency increases the wavelength decreases and if frequency decreases the wavelength increases.

Mathematically it can be expressed as,

  $f=\frac{v}{\gamma }$

Here, $\gamma$ is wavelength and $v$ is velocity.

From the formula it is clear that the wavelength will change so option A is incorrect.

There is inverse relation between frequency and wavelength so option B is incorrect and option c is also incorrect since the formula explains the inverse relation.

So if frequency of vibrating decreases the wavelength increases.

Conclusion:

Therefore, the correct option is D.