Physics
Grade-9
Easy
Question
Which of the following types of waves superimpose?
- Light waves
- Sound waves
- Water waves
- All of these
Hint:
For all linear systems, the principle of superposition states that the net response caused by two or more stimuli is the sum of the responses that would have been caused by each stimulus individually.
The correct answer is: All of these
Light waves from two coherent sources superimpose at a point.
A stereo has at least two speakers that create sound waves, and waves can reflect from walls. All these waves superimpose.
If two objects bob up and down with the same frequency at two different points, then two sets of concentric circular waves will be produced on the surface of the water. These concentric waves will interfere with each other as they travel across the surface of the water.
Hence, all three waves are able to superimpose. Therefore (D) all of the above is the right answer.
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