Question

Which type of wavefront is formed when distance between light
source and slit is infinite, whether the source is point-size or linear?​

Answer 1

Answer:

plane wavefront

Explanation:

If the distance is infinite the wavefront is plane. e. g

Sun rays

Answer 2

Concept

The collection of all points with the same phase is known as the wavefront in physics for a time-varying wave field. The word only has universal meaning for fields where there is a sinusoidal variation in time with a single temporal frequency at each location. Wavefronts typically shift over time.

Explanation

• A plane wavefront is a wavefront that originates from a point source of light that is infinitely far away, or at a very great distance.
• Keep the point source at the convex lens's focus to acquire the plane wavefront.
• Plane wavefronts are how the sun's light reaches the earth.
• A tiny area of a spherical or cylindrical wavefront that seems to be plane when the point source or linear source of light is extremely far away is known as a plane wavefront.

Hence a plane wavefront is formed distance between light source and slit is infinite

#SPJ3