1.

Why does the driver of a vehicle wipe the glass inside, even if the wiper is working on the outer surface of the glass when he drives in rain?

Answer»
  • The outside wiper of a vehicle wipes off the rainwater. 
  • The coolness of the rain causes condensation of natural moisture on the inner surface of the glass. 
  • Due to this condensation of moisture, it makes invisibility to the driver, to drive 
  • To maintain the visibility through the glass the driver wipes off the glass manually.


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