5. The diagram shows a wave at a particular moment in time as it travels along a

Question

5. The diagram shows a wave at a particular moment in time as it travels along a rope in the direction shown Which one of the following statements is true about the point P on the rope? (a) It is moving upwards (b) It is moving downwards (c) It is moving to the right. (d) It is momentarily at rest l' ·? 6. Two sinusoidal waves travel in the same medium but one with twice the wavelength of the other. Which of the following statements is true? The wave with the longer wavelength has (a) higher speed (b) lower speed (c) higher frequency (d) lower frequency 7. When a wave crest is incident upon a free end of a string, it returns as a (crest trough) after reflection; therefore, when a trough is incident upon a free end, it must return as a (crest trough) after reflection a. Crest, crest b. Crest, trough c. Trough, crest d. Trough, trough

Explanation / Answer

5) D momentarily rest

6) A higher speed since frequency remains same f= Velocity/wavelength, so for higher wavelength, velocity is also higher to keep ratio constant

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