What is the name of the convex lens at $A$ ?

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Solution

Objective lens have large diameter or large focal length
Thus Lens A is objective.

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Similar questions

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What is the name of the convex lens at A?

Objective lens have large diameter or large focal lengthThus Lens A is objective.

What is the name of the convex lens at $A$ ?

Objective lens have large diameter or large focal length
Thus Lens A is objective.