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What is scalar quantity? |
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Answer» The quantity which needs only magnitude not direction called scaler quantity. A quantity which needs magnitude to describe it . For ex if we take distance travelled and displacement ,if we covers a distance of 5 km and then return back then the distance covered is 5km + 5km i.e. 10km but when the displacement is5 km in forward direction and then return back the n the displacement is5km-5km i.e. 0km . Hence we see that distance covered is a scalar quantity but displacement is a vector quantity . |
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