Take a bottle made out of a metal and stick a ballon (not blown) on its mouth. What state is the ballon in ? Remove the source of heat. What happens slowly?

Take a bottle made out of a metal and stick a ballon (not blown) on its mouth. What state is the ballon in ? Why did this happen, according to you?

Take a bottle made out of a metal and stick a ballon (not blown) on its mouth. What state is the ballon in ?Now take a candle and carefully heat the bottom of the bottle. What do you see?

A cylinder with a movable piston contains 3 moles of hydrogen at standard temperature and pressure. The walls of the cylinder are made of a heat insulator and the piston is insulated with a pile of sand kept on it. By what factor does the pressure of the gas increase if the gas is compressed to half its original volume?

What happen when sodium metal is heated in free supply of air ?

A parallel plate capacitor is made out of two rectangular metal plates of sides 30 cm x 15 cm separated by a distance of 2 mm. The capacitor is charged in such a way that the charging current has a constant value of 100 mA. What must be the rate of change of potential of the charging source and what will be the displacement current in the region between the capacitor plates?

A factory makes tennis rackets and cricket bats. A tennis racket takes 1.5 hours of machine time and 3 hours of craftman's time in its making while a cricket bat takes 3 hour of machine time and 1 hour of craftman's time.In a day, the factory has the availability of not more than 42 hours of machine time and 24 hours of craftman's time. (i) What number of rackets and bats must be made if the factory is to work at full capacity? (ii) If the profit on a racket and on a bat is Rs. 20 and Rs. 10 respectivelh, find the maximum profit of the factory when it works at full capacity.

A cake of mud is thrown on a wall, where it sticks . What happens to its initial kinetic energy ?