Physics Past Questions and Answers

The density of a certain oil on frying becomes 0.4 kgm\(^{-3}\) with the volume of 20m\(^{3}\). what will be its initial volume when its initial density is 0.8 kgm\(^{-3}\) assuming no loss of oil due to spillage?

Heat is radiated by hot objects in the form

If a container is filled with ice to the brim, what happens to the level of water when the ice completely melts?

The small droplet of water that forms on the grass in the early hours of the morning is

A vapour is said to be saturated when