Question

What is wave front? Draw spherical wave front?​

Answer 1

1. Explain Huygen's construction of spherical wavefront.
2. The light waves travel with the same speed( v) in all the directions. After the time ′t′, the waves will reach all the points which are at a distance v t vt vt from S. ... The tangents drawn to these spheres is the new spherical wavefront.