A wave travelling in the +ve x-direction having maximum displacement along y-direction as 1 m, wavelength 2π m and frequency of 1π Hz, is represented by:

1. y=sin2πx-2πt
2. y=sin10πx-20πt
3. y=sin2πx+2πt
4. y=sinx-2t

Subtopic:  Wave Motion |
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Two waves are represented by the equations y1=a sin(ωt+kx+0.57) m and y2=acos(ωt+kx) m, where x is in metres and t in seconds. The phase difference between them is:
1. 1.25 rad
2. 1.57 rad
3. 0.57 rad
4. 1.0 rad

Subtopic:  Wave Motion |
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A transverse wave is represented by y = Asin(ωt -kx). At what value of the wavelength is the wave velocity equal to the maximum particle velocity?

1. πA/2

2. πA

3. 2πA

4. A

Subtopic:  Wave Motion |
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A wave in a string has an amplitude of 2 cm. The wave travels in the positive direction of the x-axis with a speed of 128 m/s and it is noted that 5 complete waves fit in 4 m length of the string. The equation describing the wave is:

1. y = (0.02)m sin(7.85x+1005t)
2. y = (0.02)m sin(15.7x -2010t)
3. y = (0.02)m sin(15.7x+2010t)
4. y = (0.02)m sin(7.85x -1005t)

Subtopic:  Wave Motion |
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The wave described by y = 0.25 sin (10πx - 2πt), where x and y are in metre and t in second, is a wave travelling along the:

1.  –ve x-direction with frequency 1 Hz

2.  +ve x-direction with frequency π Hz and wavelength λ = 0.2 m

3.  +ve x-direction with frequency 1 Hz and wavelength λ = 0.2m

4.  –ve x-direction with amplitude 0.25 m and wavelength λ = 0.2m

Subtopic:  Wave Motion |
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A transverse wave propagating along the x-axis is represented by: 
y(x,t) = 8.0 sin 0.5πx-4πt-π4 where x is in meters and t is in seconds. The speed of the wave is:

1. 4π m/s

2. 0.5 m/s

3. π4 m/s

4. 8 m/s

Subtopic:  Wave Motion |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology