Question:
A second pendulum is kept in a satellite it is revolving around the earth at the height of $3\,R$ from the earth surface. Time period of second pendulum will be:
A second pendulum is kept in a satellite it is revolving around the earth at the height of $3\,R$ from the earth surface. Time period of second pendulum will be:
Updated On: Jul 28, 2022
- zero
- $ 3\sqrt{3\sec } $
- 4 sec
- infinite
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The Correct Option is D
Solution and Explanation
In satellite acceleration due to gravity $g=0$
$\therefore T=2 \pi \frac{\sqrt{l}}{g}$ is infinite
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Concepts Used:
Escape Speed
Escape speed is the minimum speed, which is required by the object to escape from the gravitational influence of a plannet. Escape speed for Earth’s surface is 11,186 m/sec.
The formula for escape speed is given below:
ve = (2GM / r)1/2
where ,
ve = Escape Velocity
G = Universal Gravitational Constant
M = Mass of the body to be escaped from
r = Distance from the centre of the mass