The time period of a simple pendulum is 4 s and the acceleration due to gravity at the given place is ` 9.8 ms ^(-2)` . Write the following steps in sequential order to find the length of the pendulum.
(A) From the above formula, write the value of l and `l=(T^(2).g)/(4pi^(2))`
(B) Note the given values of the time period (T) and acceleration due to gravity (g).
(C)Write the formula, ` T = 2pi sqrt(l/g)` , where l is the length of the pendulum.
(D). Substitute the given data and get the value of `l`.

Options

A. CDBA
B. ABCD
C. BCAD
D. ADBC

Answer

C

Explanation

(B) Note the given values of time period (T) and accelertation due to gravity (g).
© write the formula, ` T= 2pi sqrt(l/g)` where, l, is the length of the pendulum.
(D) Substitute the given data and get the value of 'l'.
(A) From the above formula, write the value of l as `l = (T^(2)g)/(4 pi^(2))`