Which of the following statements is correct?

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(A) When a wave travels in a medium,the displacement and velocity of each particle vary with time.For any elemental length of the string,both its kine

Vedclass · Accepted Answer

In case of a wave traveling in a string,the oscillation energy of an elemental length remains constant.

Vedclass · Answer

(A) When a wave travels in a medium,the displacement and velocity of each particle vary with time.For any elemental length of the string,both its kinetic energy $(K.E.)$ and potential energy $(P.E.)$ change periodically with time.However,the total energy (sum of $K.E.$ and $P.E.$) of an elemental length remains constant as the wave propagates.Therefore,the oscillation energy,which is the total energy of the element,remains constant.

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