Physics Past Questions and Answers

Which of the following statements about the mass and the weight of a body is not correct? its

An object weighs 60.0N in air, 48.2N in a certain liquid X, and 44.9N in water, Calculate the relative density of X

Calculate the change in volume when 90g of ice is completely melted. [density of water = 1g cm^-3, density of ice = 0.9cm^-3]

The diagram above represent displacement D, versus time, t graph of a progressive wave. Deduce the frequency of the wave

Which of the following concept is not an evidence of the particle nature of matter?