In Cassegrain telescope, the objective i

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Target Exam

CUET

Subject

Physics

Chapter

Communication

Question:

In Cassegrain telescope, the objective is a:

Options:

Small concave mirror

Large concave mirror

Large convex mirror

Large convex lens

Correct Answer:

Large concave mirror

Explanation:

The correct answer is Option (2) → Large concave mirror

In this design, the large concave mirror collects light (called primary mirror) and reflects it toward a small convex mirror (secondary mirror).