A) straight line parallel to frequency axis
B) straight line parallel to velocity axis
C) straight line passing through origin and making an angle of 45° with frequency axis
D) hyperbola
Correct Answer: A
Solution :
Graph between frequency and velocity is a straight line which is parallel to frequency axis. Because according to the relation \[v=n\lambda \], as frequency increases, wavelength decreases and so, velocity remains constant.
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