When the length of the pendulum is increased four times then its time period is increased?
Correct answer: B. Two time
- A. One time
- B. Two time
- C. Three time
- D. Four time
Explanation
Correct answer : b) Two times (Option b): If the length of the pendulum is increased four times, the time period (T) of the pendulum will increase by approximately two times. This is because the time period is directly proportional to the square root of the length. If the length is increased four times, the square root of the length will increase by approximately two times, resulting in a two-time increase in the time period.
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Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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