In a reflecting telescope,a secondary mirror | vedclass

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(D) In a reflecting telescope,the primary objective is a large concave mirror. If the eyepiece were placed at the focus of this primary mirror,it woul

Vedclass · Accepted Answer

move the eyepiece outside the telescopic tube

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(D) In a reflecting telescope,the primary objective is a large concave mirror. If the eyepiece were placed at the focus of this primary mirror,it would block incoming light. To solve this,a secondary mirror is used to reflect the light rays towards the side or back of the telescope tube,allowing the eyepiece to be placed outside the main path of incoming light. This design also allows for a large focal length in a compact telescope tube.

In a reflecting telescope,a secondary mirror is used to:

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