Define lubricants. Why soles of shoes are grooved?
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lubricants are the substances wich reduce friction
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The substance which reduces friction between surfaces is called a lubricant
eg:- oils, lead, graphite, grease
Soles of shoes are grooved to reduce friction which will prevent the sole from getting wear & tear
eg:- oils, lead, graphite, grease
Soles of shoes are grooved to reduce friction which will prevent the sole from getting wear & tear
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