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A simple harmonic wave is represent by t...

A simple harmonic wave is represent by the relation
`y(x,t)=a_(0) sin 2pi(vt-(x)/(lambda))`
if the maximum particle velocity is three times the wave velocity, the wavelength `lambda` of the wave is

A

`pi a_(0)//3`

B

`2pia_(0)//3`

C

`pia_(0)`

D

`pi a_(0)//2`

Text Solution

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The correct Answer is:
To solve the problem, we need to find the wavelength \( \lambda \) of a simple harmonic wave given that the maximum particle velocity is three times the wave velocity. Let's break down the solution step by step. ### Step 1: Understand the wave equation The wave is represented by the equation: \[ y(x,t) = a_0 \sin(2\pi(vt - \frac{x}{\lambda})) \] where: - \( a_0 \) is the amplitude, - \( v \) is the wave velocity, - \( \lambda \) is the wavelength. ### Step 2: Identify the maximum particle velocity The maximum particle velocity \( v_p \) for a wave is given by the formula: \[ v_p = \omega a_0 \] where \( \omega \) is the angular frequency. ### Step 3: Relate angular frequency to frequency The angular frequency \( \omega \) is related to the frequency \( f \) by: \[ \omega = 2\pi f \] Thus, we can express the maximum particle velocity as: \[ v_p = 2\pi f a_0 \] ### Step 4: Relate wave velocity to frequency and wavelength The wave velocity \( v \) is related to frequency and wavelength by: \[ v = f \lambda \] ### Step 5: Set up the equation based on the problem statement According to the problem, the maximum particle velocity is three times the wave velocity: \[ v_p = 3v \] Substituting the expressions we have: \[ 2\pi f a_0 = 3(f \lambda) \] ### Step 6: Simplify the equation We can cancel \( f \) from both sides (assuming \( f \neq 0 \)): \[ 2\pi a_0 = 3\lambda \] ### Step 7: Solve for wavelength \( \lambda \) Rearranging the equation gives: \[ \lambda = \frac{2\pi a_0}{3} \] ### Final Answer Thus, the wavelength \( \lambda \) of the wave is: \[ \lambda = \frac{2\pi a_0}{3} \] ---

To solve the problem, we need to find the wavelength \( \lambda \) of a simple harmonic wave given that the maximum particle velocity is three times the wave velocity. Let's break down the solution step by step. ### Step 1: Understand the wave equation The wave is represented by the equation: \[ y(x,t) = a_0 \sin(2\pi(vt - \frac{x}{\lambda})) \] where: ...
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