AIIMS 2018 Physics Wave Motion MCQ Question
Two pulses in a stretched string whose centers are initially apart are moving towards each other as shown in figure. The speed of each pulse is . After , the total energy of the pulse will be
Zero
Purely kinetic
Purely potential
Partly kinetic and partly potential
Correct Answer
Detailed Explanation
In the context of wave motion, after 2 seconds, the waves have traveled a distance of 4 m, indicating that the energy associated with the wave is primarily kinetic due to the movement of particles in the medium. Since the wave shape is not specified to have any potential energy components, option B correctly identifies that the energy is purely kinetic. Other options are not applicable as they do not provide relevant information or alternatives regarding the energy state of the wave. Understanding the distinction between kinetic and potential energy in wave mechanics is crucial for analyzing wave behavior in various media.
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