Ice cubes are added to a glass of warm water. The glass and water are cooled by
The terrestrial telescope has one extra lens more than the astronomical telescope. The extra lens is for
The driving mirror of a car has a radius of curvature of 1m. A vehicle behind the car is 4m from the mirror. Find the image distance behind the mirror.
The pressure of a given mass of a gas changes from 300Nm\(^{-2}\) to 120Nm\(^{-2}\) while the temperature drops from 127°C to -73°C. The ratio of the final volume to the initial volume is
