Which of these substances help us to reduce friction between the surfaces?

Using oil

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Using fine powder

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Both of these

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None of these

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Solution

The correct option is C
Both of these

We can reduce friction by either applying oil or fine powder between the rubbing surfaces

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Which of these substances help us to reduce friction between the surfaces?

The correct option is C Both of these We can reduce friction by either applying oil or fine powder between the rubbing surfaces

The correct option is C
Both of these

We can reduce friction by either applying oil or fine powder between the rubbing surfaces