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Mukul Bhargava
Asked: 2022-11-11T22:29:12+05:30 In:

A wave travelling in the `+ve` x-direction having displacement along y-direction as 1`m`, wavelength `2pi` m and frequency of `1//pi` Hz is represented by
A. `y=sin(x-2t)`
B. `y=sin(2pix-2pit)`
C. `y=sin(10pix-20pit)`
D. `y=sin(2pix+2pit)`

A wave travelling in the `+ve` x-direction having displacement along y-direction as 1`m`, wavelength `2pi` m and frequency of `1//pi` Hz is represented by
A. `y=sin(x-2t)`
B. `y=sin(2pix-2pit)`
C. `y=sin(10pix-20pit)`
D. `y=sin(2pix+2pit)`
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  1. Correct Answer – A
    `y=asin(kx-omegat)`
    `=sin[(2pi)/(2pi)x-2pixx(1)/(pi)t]=sin(x-2t)`

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Venkat Sen
Asked: 2022-11-01T13:32:09+05:30 In:

A wave travelling in the `+ve` x-direction having displacement along y-direction as 1`m`, wavelength `2pi` m and frequency of `1//pi` Hz is represented by
A. `y= sin (x-2t)`
B. `y = sin (2pi x-2pi t)`
C. `y = sin (10 pi x-20 pi t)`
D. `y = sin (2 pi x+2pi t)`

A wave travelling in the `+ve` x-direction having displacement along y-direction as 1`m`, wavelength `2pi` m and frequency of `1//pi` Hz is represented by
A. `y= sin (x-2t)`
B. `y = sin (2pi x-2pi t)`
C. `y = sin (10 pi x-20 pi t)`
D. `y = sin (2 pi x+2pi t)`
Parabola
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1 Answer

  1. Correct Answer – A
    Given, `a=1 m`
    As `y=a sin (kx-omega t)=sin ((2pi)/(2pi)x-2pi xx1/2 t)`
    `=sin (x-2t)`

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