Target Exam

CUET

Subject

Physics

Chapter

Wave Optics

Question:

The type of wavefront that emerges from a distant light source is -

Options:

Cylindrical

Plane

Diverging spherical

Converging spherical

Correct Answer:

Plane

Explanation:

The correct answer is Option (2) → Plane

When the light source is very far away, the light rays can be considered to be almost parallel to each other. As a result, the wavefront formed by these parallel rays are plane wavefront.