NEET UG PHYSICS MCQ: WAVES

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Application +4 | -1

The equation of a wave travelling on a string is

y = 10\sin \left[ {\pi \left( {5t - \frac{x}{4}} \right)} \right]

, where x, y are in cm and t is in second. The velocity of wave is

View answer and explanation

Correct option: C

20 cm/s, in x-direction

Option C (20 cm/s, in x-direction) is correct because by comparing the given equation with the standard wave equation, the wave velocity can be calculated as

\omega/k

, and the sign indicates the direction of propagation.

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