WB JEE 2023 | Waves Question 8 | Physics

WB JEE 2023

MCQ (Single Correct Answer)

-0.25

The displacement of a plane progressive wave in a medium, travelling towards positive x-axis with velocity 4 m/s at t = 0 is given by $$y = 3\sin 2\pi \left( { - {x \over 3}} \right)$$. Then the expression for the displacement at a later time t = 4 sec will be

$$y = 3\sin 2\pi \left( { - {x-16 \over 3}} \right)$$

$$y = 3\sin 2\pi \left( { {-x-16 \over 3}} \right)$$

$$y = 3\sin 2\pi \left( { {-x+1 \over 3}} \right)$$

$$y = 3\sin 2\pi \left( { {-x-1 \over 3}} \right)$$

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