Question

Above the resonant frequency,

• A. the frequency of the body is less than the frequency of the external periodic force.
• B. the frequency of the body is greater than the frequency of the external periodic force.
• C. the frequency of the body is exactly equal to the frequency of the external periodic force.
• D. both (A) and (B)

Answer 1

The correct option is C the frequency of the body is exactly equal to the frequency of the external periodic force.

The maximum energy transfer from one osccillatory system to other when their frequency are equal and this frequency is called resonat frequency.

Ans. (C)