CBSE · Class 12 · Physics · Wave OpticsWhat type of wavefront is obtained from a distant star or a line source of light?
Step-by-Step Solution
The correct answer is Plane wavefront for a distant star (and Cylindrical wavefront for a line source). Specifically, for a star at infinity, it is a plane wavefront.
Detailed Options Breakdown
Option : Spherical wavefront
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Wave Optics.
Option 1: Plane wavefront (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Conical wavefront
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Wave Optics.
Option 3: Irregular wavefront
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Wave Optics.
💡 Study Guide: This question tests core syllabus concepts from Wave Optics. For formulas, key summaries, and mock exam reference guides, read the full Wave Optics Revision Notes.