Calculate the time period of a simple pendulum whose length is equal to radius of earth.
Hint `: L =R_(e) = 6.4 xx 10^(6) m , g = 9.8 ms^(-2)`
`T ' = 2pi sqrt(( R_(e))/(2g))`

Explanation

To calculate the time period of a simple pendulum whose length is equal to the radius of the Earth, we can follow these steps:

### Step 1: Identify the formula for the time period of a simple pendulum
The time period \( T \) of a simple pendulum is given by the formula:
\[ T = 2\pi \sqrt{\frac{L}{g}} \]
where:
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