Question
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What of the following statements is true for refracting telescopes? The main focusing optical piece is...
What of the following statements is true for refracting telescopes?
- The main focusing optical piece is a mirror
- It is mostly used by professional astronomers
- The main focusing optical piece is lenses
- It is easy to build a large telescope.
Solutions
Expert Solution
Answer:
Refracting telescopes use lenses to observe far distant objects. Initially astronomers use this telescopes to study space research. The main disadvantage of refracting telescopes was they required very thick lens and they had chromatic aberrations.
As per above explanation, for refractive telescopes
1. The main optical piece is a mirror. False. The main optical piece is lens in refracting telescopes.
2. It is mostly used by professional astronomers. False. Reflecting telescopes, infrared telescopes, radio telescopes, gamma rays telescopes, are widely used by professional astronomers.
3. The main optical piece is lenses. True. Refracting telescope uses two lenses one as objective lens and other as eye piece lens to observe the distant image more closer.
4. It is easy to build a large telescope. False. To build a large refracting telescope, using high quality lenses is costly and they are heavy by weight.
Amanda K answered 4 weeks agoRelated Solutions
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Lenses
Mirrors
Units produced
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22
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7
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230
230
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Required:
Under...
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Mirrors
Units produced
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