Pls solve this question

Q7. We have two identical metal sheets. One of them is rubbed with sand paper and the other with ordinary paper. Which metal sheet will shine more and why ?
 

While rubbing with sandpaper , more frictional force is produced between the layers of metal sheet and sandpaper which causes more force on dust particles and they are removed easily , so it will shine more. But in case of an ordinary paper , the force of friction is not sufficient to remove all the dust , so it will shine less in the case.

Hope it helps :)

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Answer 7 : While rubbing with sandpaper , more frictional force is produced between the layers of metal sheet and sandpaper which causes more force on dust particles and they are removed easily , so it will shine more. But in case of an ordinary paper , the force of friction is not sufficient to remove all the dust , so it will shine less in the case.?

Hope it helps :)
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Answer 7 : While rubbing with sandpaper , more frictional force is produced between the layers of metal sheet and sandpaper which causes more force on dust particles and they are removed easily , so it will shine more. But in case of an ordinary paper , the force of friction is not sufficient to remove all the dust , so it will shine less in the case.?
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