We have two identical metal sheets. One of them is rubbed with sand paper and the other with ordinary paper. The one rubbed with sand paper shines more than the other. Give reason.
ScienceClass 8CBSEAnswered 28 Mar 2026
Answer
Friction between plane paper and metal sheet is less compared to the friction between sand paper and metal. This friction acts on the top layer of metal sheet which will remove the top layer to make the metal shine.
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