Physics Past Questions and Answers

One of the most important application of bimetallic strip is found in the construction of ____________

At constant pressure, the density of a fixed gas is ____________

How much heat is absorbed when a block of copper of mass \(0.05 \mathrm{~kg}\) and specific capacity 390\(J\mathrm{kg}-1 \mathrm{~K}-1\) is heated from \(20^{\circ} \mathrm{C}\) to \(70^{\circ} \mathrm{C}\) ?

A block of ice floats on water inside a container. If the block of ice gets a container. If the block of ice gets completely melted, the level of water in the container will ____________

The space between the double glass walls of a thermos flask is evacuated and the two surfaces facing the evacuated spaces are silvered. The residual source of heat loss takes place by ____________