When the string vibrates in three loops then the length '/' of the string is expressed as:
Correct answer: C. I = 3λ/2
- A. I = 3λ/4
- B. I = λ/2
- C. I = 3λ/2
- D. I = 2λ/3
Explanation
Option C is correct as λn = 2L/n n =3 λn =2L/3 3λ/2=L
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About Work and Energy
Work transfers energy when a force causes displacement, while kinetic energy, gravitational potential energy and power describe motion, position and the rate of energy transfer. The work-energy theorem links net work with change in kinetic energy, and efficiency accounts for energy losses rather than treating them as energy destruction.
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