STANDARDPhysics-Waves
STANDARD Physics Harmonic Waves MCQ Question
Type: MCQ-conceptual-Medium-Class 11
A transverse harmonic wave on a string is described by y(x,t) = 3sin(36t + 0.018x + \frac{}{4}) where x and y are in cm and t is in s. Which of the following statements is incorrect?
A
The wave is travelling in negative x-direction.
B
The amplitude of the wave is 3 cm.
C
The angular frequency of the wave is 36 rad/s.
D
The wave number is 0.018 c.
Correct Answer
Option D
Detailed Explanation
The wave equation y(x,t) = 3sin(36t + 0.018x + \frac{}{4}) indicates that the wave is travelling in the negative x-direction, and the amplitude is 3 cm. The angular frequency is 36 rad/s. However, the wave number should be 0.018 rad/cm, not c.
Found an issue with this question?