Question

What is the most fundamental property of wave?

• A. Temperature
• B. Pressure
• C. Frequency
• D. Wavelength

Answer 1

The correct option is C

Frequency

Explanation for correct option:

Option (C)

1. The equation of wave is given as $y(x,t)=A\sin (2\pi ft-kx)$, where $A$is the amplitude of wave, $f$ is the frequency, $t$ is the time, $k$ is the wave number, $y$ is the position of wave at given $x$.
2. It is clear from the equation that frequency is the most fundamental property of wave.
3. Frequency is fundamental as it does not change whatsoever the medium is.

Explanation for incorrect Option(s):

1. In case of options (D): Wavelength of wave depends on the medium in which it travels, hence it is not the most fundamental property of wave.
2. In case of options (A): From the equation of wave it is evident that Temperature is not a fundamental property of wave.
3. In case of options (B): From the equation of wave it is can be seen that Pressure is not a fundamental property of wave.

Hence, the correct answer is option (C).