A wave disturbance travelling in air enters a medium in which its velocity is less than that in air. Which of the following statements is true about the wave medium?
A
both the frequency of the wave and the wavelength are decreased
B
the frequency of the wave is decreased while the wavelength is increased
C
the frequency of the wave is unaltered while the wavelength is decreased
D
the frequency of the wave is decreased while the wavelength is unaltered
Verified Correct Answer: C.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #28253)