How do refracting and reflecting telescopes work?
Hailey AlvarezRefracting telescope uses a lens as object glass to collect and focus light. Reflecting telescope uses a mirror for objective.
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Ian AitchisonRefracting telescopes use lenses to bend and focus light, while reflecting telescopes use mirrors to reflect and focus light. Both types collect and magnify light to produce clear images of distant objects.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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