A simple pendulum is being used to determine the value of gravitational acceleration $g$ at a certain place. The length of the pendulum is $25.0 \mathrm{~cm}$ and a stop watch with $1 \mathrm{~s}$ resolution measures the time taken for 40 oscillations to be $50 \mathrm{~s}$. The accuracy in $g$ is:

Question:

A simple pendulum is being used to determine the value of gravitational acceleration $g$ at a certain place. The length of the pendulum is $25.0 \mathrm{~cm}$ and a stop watch with $1 \mathrm{~s}$ resolution measures the time taken for 40 oscillations to be $50 \mathrm{~s}$. The accuracy in $g$ is:

1. $5.40 \%$

2. $3.40 \%$

3. $4.40 \%$

4. $2.40 \%$

JEE Main Previous Year Single Correct Question of JEE Main from Physics Physical World, Units and Measurements chapter.

JEE Main Previous Year 8 Jan. 2020 II

Correct Option: 3

Solution:

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