Place a 1 litre empty bottle under a tap from which water is falling drop by drop due to leakage How much time did it takie to fill the bottle? Calculate how much water would be wanted in a year.

What do you observe after adding the drop of ink or Potassium Permanganate ? How much time does it take for the colour to spread evenly throughout the water ?

To convert 1 litre of 1.123N solution of an acid into 1N solution, how much volume of water should be added ?

A helicopter is ascending vertically with a speed of 8.0 "ms"^(-1) . At a height of 12 m above the earth, a package is dropped from a window. How much time does it take for the package to reach the ground ?

A helicopter is ascending vertically with a speed of 8.0 ms^(-1) .At a height of 120 m above the earth ,a package is dropped from a window.How much time does it take for the package to reach the ground?

Every child in your school brings a water bottle containing 2L of water. If all the water is poured into a container which has 2 kilo litre capacity of water. It was found that it needed 600 litres more to be filled. How many children poured water bottles in the container?

How much time it would take for emptying of 100 % food from small intestine ?