Why two holes are made to empty an oil tin ?

Give reason for the following statements: (a) A liquid inside a dropper comes out only when its rubber bulb is pressed hard. (b) Two holes are made to empty an oil tin.

Assertion : To empty an oil tank, two holes are made. Reason : Oil will come out two holes so it will emptied faster.

Assertion : To empty an oil tank, two holes are made. Reason : Oil will come out two holes so it will emptied faster.

Two holes are made in a sealed tin can to take out oil from it. Explain.

Explain why holes are made in banners and hoarding hanging in the open?

A water tank has two holes. The 1st hole alone makes the tank empty in 3 min and 2nd hole alone makes the tank empty in 5 min. If water leaks out a constant rate, how long in minutes does it. If both the holes together empty the tank?

Explain the following : (i) A balloon collapses when air is removed from it. (ii) Water does not run out of a dropper unless its rubber bulb is pressed. (iii) Two holes are made in a completely filled sealed tin can to take out oil from it.

Two holes 1 and 2 are made at depths h and 16h reapectively. Both the holes are circular but radius of hole-1 is two times.

Two holes 1 and 2 are made at depths h and 16h reapectively. Both the holes are circular but radius of hole-1 is two times.