A waveform given by:    y=3Asin(ωtkx)
is superposed with another waveform y=4Acos(ωtkx). The amplitude of the resulting waveform will be:
1. 7A 2. A
3. 3.5A 4. 5A
Subtopic:  Wave Motion |
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A sinusoidal waveform is travelling along the x-axis. The phase difference between two particles separated by 10 cm is π2. The wavelength of the wave is:
1. 20 cm
2. 30 cm
3. 40 cm
4. 80 cm
Subtopic:  Wave Motion |
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Sinusoidal sound waves of the same frequency travelling in air along the x-axis and the y-axis arrive in phase with each other at the origin. Their amplitudes are equal to A (each). The amplitude of the vibration at the origin is:
               
1. A
2. 2A
3. 2A
4. (2+2)A
Subtopic:  Wave Motion |
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Two waves are represented by the equations y1=asin(ωt+kx+0.57) m and 
y2=acos(ωt+kx) m, where x is in meters 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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