Which of the following change in atmospheric pressure indicates a windy and shower condition? In which of the following machines, Pascal’s law is applied? What is the young’s modulus of iron? Which force between the brake pads and the brake drums stops the wheels? How many litres are equal to 1 metre cube? On which of the following type matter, hooke’s law is applicable within certain limit? What is the young’s modulus of brass? What should be the approximate length of glass tube to construct a water barometer?