Consider two waves passing through the same string. Principle of superposition for displacement says that the net displacement of a particle on the string is sum of the displacements produced by the two waves individually. Suppose we state similar principles for the net velocity of the particle and the net kinetic energy of the particle. Such a principle will be valid for:

 1 both the velocity but not for the kinetic energy 2 the velocity but not for the kinetic energy 3 the kinetic energy but not for the velocity 4 neither the velocity nor the kinetic energy

Subtopic: Â Travelling Wave on String |
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Two wave pulses travel in opposite directions on a string and approach each other. The shape of one pulse is inverted with respect to the other.

1. The pulses will collide with each other and vanish after collision

2. The pulses will reflect from each other, i.e., the pulse going towards right will finally move towards left and vice versa

3. The pulses will pass through each other but their shapes will be modified

4. The pulse will pass through each other without any change in their shapes

Subtopic: Â Travelling Wave on String |
From NCERT
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Two periodic waves of amplitudes A1 and A2 pass through a region. If A1 > A2, the difference in the maximum and minimum resultant amplitude possible is

1. 2A1

2. 2A2

3. A1 + A2

4. A1 - A2

Subtopic: Â Travelling Wave on String |
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Two waves of equal amplitude A, and equal frequency travel in the same direction in a medium. The amplitude of the resultant wave is

1. 0

2. A

3. 2A

4. between 0 and 2A

Subtopic: Â Travelling Wave on String |
From NCERT
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