The graph shows a snapshot of a travelling harmonic wave; eight points are indic

Question

The graph shows a snapshot of a travelling harmonic wave; eight points are indicated. Answer the five questions by selecting from the choices below. E.g.. if the answer to the first question is A, and the answers to the rest. B, enter ABBBB. You only have three tries! If the wave is moving to the right, what is the direction of the velocity of the particle at point 3? If the wave is moving to the left, what is the direction of the velocity of the particle at point 1? If the velocity of the particle at point 4 is given by the arrow B, in which direction is the wave moving? If the velocity of the particle at point 3 is given by the arrow D. in which direction is the wave moving? If the wave is moving in the direction C. what is the direction of the velocity of the particle at point 7?

Explanation / Answer

1. Since the wave is moving to right, particle at point 3 is moving down. So, option is D.

2. Since the wave is moving to left, particle at point 1 is moving down. So, option is D.

3. Since particle at point 4 is moving up, the wave is moving to left. So, option is A.

4. Since particle at point 3 is moving down, the wave is moving to right. (Same as in 1) So, option is C

5. Since the wave is moving to right, particle at point 7 is moving up. So, option is B.

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