Answers

Heat is supplied uniformly at the rate of 100W to 1.0 x 10(^{-2})kg of a liquid for 20…

The linear expansivity of brass is 2 x 10(^{-5})  (^oC^{-1}). If the volume of piece of brass is 10cm(^3)…

Which of the following statements about defects of vision is/are CORRECT?  I. For a long sighted person, close objects…

The refractive index of a liquid is 1.5. If the velocity of light in vacuum is 3.0 x…

One of the following readings represents the measurement of the length of a metal rod using vernier callipers. Taking…

The effect of closing the key K in the circuit shown in the figure above would be to?…

Which of the following statements about radioactivity is true? (i) Alpha particle is positively charged (ii) Beta particle is…

A few grains of table salt were put in a cup of cold water, kept at constant temperature…

(a) (i) Define force and state its S.I unit. (ii) List the two types of solid friction.                                         (b) A…

(a) (i) Explain latent heat. (ii) State two factors that affect the rate of evaporation of a liquid                      (b) Explain…