Question

In Huygens' principle, what does each point of the wavefront act as?

विकल्प

• A common tangent to all spheres

• A ray normal to both wavefronts

• The source of a secondary disturbance

• The centre of Saturn’s rings

Answer 1

Each point of the wavefront is the source of a secondary disturbance. Wavelets emanate from these points as the wave advances.