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A simple harmonic oscillation has an amp...

A simple harmonic oscillation has an amplitude `A` and time period `T`. The time required to travel from `x = A` to ` x= (A)/(2)` is

A

`(T)/(6)`

B

`(T)/(4)`

C

`(T)/(3)`

D

`(T)/(12)`

Text Solution

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The correct Answer is:
To solve the problem of finding the time required for a simple harmonic oscillator to travel from \( x = A \) to \( x = \frac{A}{2} \), we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Simple Harmonic Motion (SHM)**: - In SHM, the position \( x \) of a particle at any time \( t \) can be described by the equation: \[ x(t) = A \cos(\omega t + \phi) \] - Here, \( A \) is the amplitude, \( \omega \) is the angular frequency, and \( \phi \) is the phase constant. 2. **Determine the Angular Frequency**: - The angular frequency \( \omega \) is related to the time period \( T \) by: \[ \omega = \frac{2\pi}{T} \] 3. **Initial and Final Positions**: - We start at \( x = A \) and need to find the time taken to reach \( x = \frac{A}{2} \). 4. **Set Up the Equations**: - For the initial position \( x = A \): \[ A = A \cos(\omega t_1 + \phi) \implies \cos(\omega t_1 + \phi) = 1 \implies \omega t_1 + \phi = 0 \quad \text{(taking } t_1 = 0 \text{ for simplicity)} \] - For the final position \( x = \frac{A}{2} \): \[ \frac{A}{2} = A \cos(\omega t_2 + \phi) \implies \cos(\omega t_2 + \phi) = \frac{1}{2} \] - This gives: \[ \omega t_2 + \phi = \frac{\pi}{3} \quad \text{(since } \cos\left(\frac{\pi}{3}\right) = \frac{1}{2}\text{)} \] 5. **Calculate the Time Difference**: - Since we set \( \phi = 0 \) and \( t_1 = 0 \): \[ \omega t_2 = \frac{\pi}{3} \] - Substituting for \( \omega \): \[ \frac{2\pi}{T} t_2 = \frac{\pi}{3} \] - Solving for \( t_2 \): \[ t_2 = \frac{T}{6} \] 6. **Final Result**: - The time required to travel from \( x = A \) to \( x = \frac{A}{2} \) is: \[ t = \frac{T}{6} \]

To solve the problem of finding the time required for a simple harmonic oscillator to travel from \( x = A \) to \( x = \frac{A}{2} \), we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Simple Harmonic Motion (SHM)**: - In SHM, the position \( x \) of a particle at any time \( t \) can be described by the equation: \[ x(t) = A \cos(\omega t + \phi) ...
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Knowledge Check

  • A simple harmonic motino has amplitude A and time period T. The maxmum velocity will be

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