Question

A transverse wave on a long horizontal rope with a wavelength of 8 m travels at 2m/s.At
t=0, a particular point on the rope has a vertical displacement of +A, where A is the
amplitude of the wave. At what time will the vertical displacement of this same point on
the rope be-A:
А. t=1/8s
B. t=1/4s
C. t=1/25
D. t=2s
E t=4s​

Answer 1

Answer:

The correct option is t=2s.

Explanation:

The time period of the oscillation of the wave is T = 8m/2ms = 4s

The duration between out of phase displacement of a point in the wave = Half of the time period = T/2

therefore 4/2 = 2s.

Hence , the correct option is (d)

Answer 2

Answer:

d t=2s

Explanation:

shown in image

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