The density of water is unique because it is maximum at a specific temperature, unlike most other substances which become densest in their solid state.
This phenomenon, where water is densest at 4°C (277.15 K) and becomes less dense as it cools further towards 0°C (273.15 K), is known as the anomalous expansion of water.
Therefore, the temperature at which the density of water is maximum is closest to 277 K.
Two balls, A and B, are thrown simultaneously, a vertically upward with a speed of 20 m/s from the ground and B vertically downward from a height of 40 m with the same speed and along the same line of motion. At what points do the two balls collide by taking acceleration due to gravity as 9.8 m/s 2?
On the basis of which principle does soap clean surfaces?
Which one of the following devices is used to measure atmospheric pressure?
Which one of the following energy is stored in the links between the atoms?
Who among the following has explained the phenomenon of photoelectric effect?