Which of the following modes is the most economical method of transmitting electrical power over long distances?

The movement of fluid up or down a narrow tube is

A block of wood of density 0.6 gcm\(^{-3}\), weighing 3.06N in air, floats freely in a liquid of density 0.9 gcm\(^{-3}\). Calculate volume of the portion im...

Which of the following devices is used to determine the relative density of an acid?

Which of the following substances is the most volatile at room temperature?

A metal ball of weight W falls through a column of glycerine of viscosity V. If the ball experiences an upthrust U and terminal velocity is attained, then

A bird flies at 10ms\(^{-1}\) for 3s, 15ms\(^{-1}\) for 3s and 20 ms\(^{-1}\) for 4s. Calculate the bird's average speed

The diagram above illustrates trapped air in a syringe placed in water that is gradually heated. It is observed that the piston rises as the temperature of t...

The derived unit of pressure can be expressed as