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प्रश्न
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विकल्प
The energy of any small part of a string remains constant in a travelling wave.
The energy of any small part of a string remains constant in a standing wave.
The energies of all the small parts of equal length are equal in a travelling wave.
The energies of all the small parts of equal length are equal in a standing wave.
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उत्तर
The energy of any small part of a string remains constant in a standing wave.
A standing wave is formed when the energy of any small part of a string remains constant. If it does not, then there is transfer of energy. In that case, the wave is not stationary.
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