Given that T stands for time period and l stands for length of simple pendulum. If g is the acceleration due to gravity, then which of the following statements about T2 = 4π l/g correct ?
Answer & explanation
Correct answer: option 3
Time period of a simple pendulum : T = \(2 \pi \sqrt{\frac{l}{g}}\)
T2 = \(4 \pi^2 \frac{l}{g}\)
So, the given relation is correct dimensionally but NOT numerically.