To sharpen the blade of a knife by rubbing it against a surface, which of the following will be most suitable? (a) stone (b) plastic block (c) wooden block glass block
ScienceClass 8CBSEAnswered 28 Mar 2026
Answer
- Soln:
Answer is (a) stone
Explanation:
Stone exerts greater frictional force which sharpens the blades upon rubbing.
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