Give a brief account of Huygens’ wave theory of light.

Huygens’ wave theory of light: In 1678, Dutch physicist Christian Huygens proposed a theory to explain the wave nature of light. This theory is called Huygens’ wave theory of light. According to wave theory of light, a source of light […]

State Huygens’ principle.

It is the geometrical construction to determine new position of a wave front at any later instant from its position at any earlier instant. Statement: i. Every point on the primary wave front acts as a secondary source of light […]

State the main characteristics of wave normal & Wave front.

Characteristics of wave normal I. It gives the direction of propagation of wave. II. It is perpendicular to wave front. III. In a homogeneous isotropic medium, wave normal is same as direction of ray of light. IV. It is drawn […]

Define the term of wave front, wave normal and wave surface.

Definition: Wave front: A locus of all the points of the medium to which waves reach simultaneously so that all the points are in the same phase is called wave front. Wave normal: A perpendicular drawn to the surface of […]