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Waves — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsWaves1 Mark
MCQ
Two pulses in a stretched string whose centres are initially $8 \ cm$ apart are moving towards each other as shown in figure. The speed of each pulse is $2 \ cms^{-1}$. After $2$ second, the total energy of the pulses will be:
  • A
    Zero.
  • ✓
    Purely kinetic.
  • C
    Purely potential.
  • D
    Partly kinetic and partly potential.
✓

Answer

Correct option: B.
Purely kinetic.

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