What will happen to the time period of a simple pendulum if it is made to oscillate in some fluid of density `ρ_(0) lt ρ` (ρ= the density of bob)

Explanation

To determine what happens to the time period of a simple pendulum when it is oscillated in a fluid of density \( \rho_0 \) (where \( \rho_0 < \rho \), and \( \rho \) is the density of the bob), we can follow these steps:

### Step 1: Understand the Basic Formula for Time Period
The time period \( T \) of a simple pendulum is given by the formula:
\[ T = 2\pi \sqrt{\frac{L}{g}} \]
where \( L \) is the length of the pendulum, and \( g \) is the acceleration due to gravity.
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