It states that if net torque acting on an isolated system is zero, the angular momentum remains conserved. Since Torque is equal to the rate of change of angular momentum so when torque is zero, dL/dt=0 So,...
What is a Spherical Mirror? It is a part of the reflective spherical surface and is spherical in shape. Spherical mirrors consist of a large number of extremely small plane mirrors. They are of two types: Concave...
The water is, in fact, not colourless. Even pure water has a slight blue tint to it, best seen when looking through a long column of water. In detail, the absorption of light in water is due to the way...