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  • In the experiment of simple pendulum, we have taken a thread of 140 cm, and an amplitude of 5 cm to begin with. Here <img alt="$\theta$" src="https://learn.careers360.com/latex-image/?%24

In the experiment of simple pendulum, we have taken a thread of 140 cm, and an amplitude of 5 cm to begin with. Here $\theta$ to begin with is about

Option: 1

5^{\circ}


Option: 2

8^{\circ}


Option: 3

3^{\circ}


Option: 4

2^{\circ}^{}


Answers (1)

best_answer

 

 

 

As we know, 

\theta=\frac{l}{r}

therefore , \theta=\frac{l}{r}=\frac{5 \mathrm{cm}}{140 \mathrm{cm}}=\frac{1}{28} \quad r a d=2.05^{\circ} \cong 2^{\circ}

Hence, (4) is the correct option.

Posted by

Ritika Harsh

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