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Standard VIII
Physics
How to Decrease Friction
If we apply o...
Question

If we apply oil on door hinges, the friction will ___.

A
increase
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B
decrease
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C
disappear altogether
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D
will remain unchanged
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Solution

The correct option is B decrease
By applying lots of lubricants between two surfaces, we can reduce friction. However, friction can never be entirely eliminated. Some irregularities always remain on the surfaces.

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