In a refracting telescope, the component that gathers and focuses light from distant objects is the ...

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Explore Alberta's Grade 8 Science curriculum on Light and Optical Systems. Test your knowledge with engaging quizzes including flashcards and multiple choice questions. Prepare effectively for your exam!

Multiple Choice

In a refracting telescope, the component that gathers and focuses light from distant objects is the ...

Explanation:
Gathering and focusing light from distant objects is what makes a refracting telescope work. The objective lens sits at the front and bends the incoming light to form a real image at its focal plane. This image is then magnified by the eyepiece so you can view it enlarged. The diaphragm controls how much light enters the tube but doesn’t create the image, and the tripod merely provides support. So the component that gathers and focuses light is the objective lens.

Gathering and focusing light from distant objects is what makes a refracting telescope work. The objective lens sits at the front and bends the incoming light to form a real image at its focal plane. This image is then magnified by the eyepiece so you can view it enlarged. The diaphragm controls how much light enters the tube but doesn’t create the image, and the tripod merely provides support. So the component that gathers and focuses light is the objective lens.

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