Question

2. Rita makes a hole in an oil tin and tries to pour out the oil in a can. The oil 1 point
flows out very slowly. Later, she makes another hole slightly away from the
first one and observes that the oil flows out rapidly. Which of the following
reason might be responsible for the same.

Answer 1

Explanation:

There is no air inside a completely filled and sealed can. But if two holes are made on the top cover of the can, air outside the can will enter it through one hole and exert atmospheric pressure on the oil from inside along with the pressure due to oil column, and it will come out of the can from the other hole. Thats why there is a need of two holes to take out oil from a completely sealed tin can.