Home/ Questions/Q 410878
Next
In Process
Preet Dev Ghose
Asked: 2022-11-08T10:55:16+05:30 In:

A wave disturbance in a medium is described by `y(x,t) = 0.02 “cos”(50pit + (pi)/(2))”cos”(10pix)` where x and y are in metre and t is in second . Which of the following is correct ?
A. A displacement node occurs at x = 0.15 m
B. An antinode occurs at `x = 0.3 m`
C. The wavelength of the wave is 0.2 m
D. The speed of the wave is 5.0 m/s

A wave disturbance in a medium is described by `y(x,t) = 0.02 “cos”(50pit + (pi)/(2))”cos”(10pix)` where x and y are in metre and t is in second . Which of the following is correct ?
A. A displacement node occurs at x = 0.15 m
B. An antinode occurs at `x = 0.3 m`
C. The wavelength of the wave is 0.2 m
D. The speed of the wave is 5.0 m/s
Parabola
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – A::B::C::D

    • 0
Mukti Sumit Majumdar
Asked: 2022-11-05T23:54:18+05:30 In:

A wave disturbance in a medium is described by `y(x, t) = 0.02 cos(50pit + (pi)/(2))cos(10pix)` where `x and y` are in meter and `t` is in second`
A. A node occurs at x = 0.15 m
B. An antinode occurs at `x -0.3 m`
C. The speed of wave is `5 ms^(-1)`
D. The wavelength is `0.2 m`

A wave disturbance in a medium is described by `y(x, t) = 0.02 cos(50pit + (pi)/(2))cos(10pix)` where `x and y` are in meter and `t` is in second`
A. A node occurs at x = 0.15 m
B. An antinode occurs at `x -0.3 m`
C. The speed of wave is `5 ms^(-1)`
D. The wavelength is `0.2 m`
Parabola
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – A::B::C::D
    `(2pi)/(lamda)=10pi rArrlamda=0.2m`
    Node occurs at `x=(lamda)/(4),(3lamda)/(4), (5lamda)/(4)=0.05m`
    `0.15 m`
    Antinode occurs at `x=(lamda)/(2),lamda,3(lamda)/(2)`….=
    `0.1 m,0.2,0.3m`
    `v = (50 pi)/(10 pi) = 5 m//s`

    • 0
Gauransh Kumar Menon
Asked: 2022-11-02T14:51:22+05:30 In:

A wave disturbance in a medium is described by `y(x, t) = 0.02 cos(50pit + (pi)/(2))cos(10pix)` where `x and y` are in meter and `t` is in second`
A. A node occurs at `x = 0.15 m`
B. An antinode occurs at `x = 0.3 m`
C. The speed pf wave is `5 ms^(-1)`
D. The wavelength is `0.2 m`.

A wave disturbance in a medium is described by `y(x, t) = 0.02 cos(50pit + (pi)/(2))cos(10pix)` where `x and y` are in meter and `t` is in second`
A. A node occurs at `x = 0.15 m`
B. An antinode occurs at `x = 0.3 m`
C. The speed pf wave is `5 ms^(-1)`
D. The wavelength is `0.2 m`.
Parabola
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – A::B::C::D

    • 0
Vivek Chanda
Asked: 2022-10-29T01:56:18+05:30 In:

A wave disturbance in a medium is described by `y(x, t) = 0.02 cos((50pit + (pi)/(2))cos(10pix)` where `x and y` are in meter and `t` is in second`
A. (a) A node occurs at `x = 0.15 m`
B. (b) A antinode occurs at `x = 0.3 m`
C. ( c ) A speed wave is `5 ms^(-1)`
D. (d) A wave lengthis `0.3 m`

A wave disturbance in a medium is described by `y(x, t) = 0.02 cos((50pit + (pi)/(2))cos(10pix)` where `x and y` are in meter and `t` is in second`
A. (a) A node occurs at `x = 0.15 m`
B. (b) A antinode occurs at `x = 0.3 m`
C. ( c ) A speed wave is `5 ms^(-1)`
D. (d) A wave lengthis `0.3 m`
Parabola
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – C
    ( c ) Comaring it with
    `y(x, t) = A cos(omegat + pi//2)coos k x`
    If `k x = pi//2`, a node occurs,
    :. `10pi x = pi//2 rArr x = 0.05m`
    If `k x = pi`,an antinode occurs
    rArr `10pix = pi rArr x = 0.1m`
    aAlso speed of wave
    `= (omega)/(k) = (50)/(10pi) = 5m//s` and `lambda = 2pi//k = 2pi//10pi = 0.2m`

    • 0