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Let θ Denote the Angular Displacement of a Simple Pendulum Oscillating in a Vertical Plane. If the Mass of the Bob Is M, the Tension is the String Is Mg Cos θ - Physics

MCQ

Let θ denote the angular displacement of a simple pendulum oscillating in a vertical plane. If the mass of the bob is m, the tension is the string is mg cos θ 

Options

  • always

  • never

  • at the extreme positions

  • at the mean position.

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Solution

at the extreme positions

Tension is the string , \[\text{T} = \frac{\text{mv}^2}{\text{r}} - \text{mg}\cos\theta\] 

When v = 0, 

\[\left| \text{T} \right| = \text{mg}\cos\theta\]

That is, at the extreme positions, the tension is the string is mgcosθ.

  Is there an error in this question or solution?
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APPEARS IN

HC Verma Class 11, 12 Concepts of Physics 1
Chapter 7 Circular Motion
MCQ | Q 16 | Page 113
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