To sharpen the blade of the knife against a surface , which of the fol

1.	To sharpen the blade of the knife against a surface , which of the following objects mentioned below will be most suitable ? Why ? (Stone , glass, plastic block, wooden block)
Answer» (a) Stone will be more SUITABLE because it will exert greater REACTION and hence greater friction force which sharpen the BLADE of a KNIFE easily by rubbing.

To sharpen the blade of the knife against a surface , which of the following objects mentioned below will be most suitable ? Why ? (Stone , glass, plastic block, wooden block)

Answer»

(a) Stone will be more SUITABLE because it will exert greater REACTION and hence greater friction force which sharpen the BLADE of a KNIFE easily by rubbing.

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To sharpen the blade of the knife against a surface , which of the following objects mentioned below will be most suitable ? Why ? (Stone , glass, plastic block, wooden block)

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