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Q.

The friction between the door hinges will be ____ if we apply oil to them.


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Detailed Solution

The friction between the door hinges will be reduced if we apply oil to them.
Lubrication reduces friction between two surfaces. As a result, by adding oil we can reduce friction. Similarly, the wear and tear of door hinges in houses cause creaking sounds, for which we apply oil to the hinges to ensure smooth door operation.
 
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The friction between the door hinges will be ____ if we apply oil to them.