(i) What is the relation between critical angle and refractive index of a material ? (ii) Does critical angle depend on the colour of light ? Explain.
ANSWER
(i) Refractive index = 1/sin C where C...
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...
1.1 SOME DEFINITIONS
(a) Distance: Distance between two points is the length of actual path travelled by the particle. It is a scalar quantity.
Unit : m(metre)
(b) Displacement: Displacement...
SPEED
VELOCITY
The distance travelled the body from its initial position to final position in one second is called speed.
The displacement travelled by the body in one second is called velocity
It...
QUESTION
Describe schematically the equipotential surfaces corresponding to (i) a constant electric field in the Z-direction, (ii) a field that uniformly increases in magnitude but remains in a constant...