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प्रश्न
The water sprinkler used for grass lawns begins to rotate as soon as the water is supplied. Explain the principle on which it works.
उत्तर
The rotation of water sprinklers used for grass lawns can be explained on the basis of Newton’s third law of motion. As soon as the water comes out of the sprinkler, it exerts an equal and opposite force on the sprinkler and it starts rotating.
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