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N76 [4]
3 years ago
7

What is the primary objective in a telescope? What two materials can it be made of?

Biology
1 answer:
Dennis_Churaev [7]3 years ago
4 0

Answer:

The objective itself is usually a cylinder containing one or more lenses that are typically made of glass; its function is to collect light from the sample.

Explanation:

A telescope mirror can be made from glass that is somewhat less pure than that used to make a lens, since light does not pass through it.

If you have any questions feel free to ask in the comments - Mark

Also when you have the chance please mark me brainliest.

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<h2>(D) is the correct option </h2>

Explanation:

  • Both the stapedius and tensor tympani are striated muscles
  • The stapedius is about 6 mm in length, arises from the pyramidal process and the tendon attaches to the posterior neck of the stapes
  • The stapedius is a muscle with a high oxidative capacity
  • The tensor tympani is about 25 mm in length, the muscle is not as strong as the stapedius, and the tendon also contains more elastic tissue and fat
  • The tensor tympani courses through a bony canal in the wall of the anterior middle ear, and attaches to the neck of the manubrium
  • The tensor tympani and stapedius muscles are protective reflexes
  • They reduce the amount of sound that gets into the inner ear
  • They are somewhat similar to the blink reflex thus they can be triggered by loud noise, and when they go off, both ears can be involved
  • If stapedius and tensor tympani muscles is not present then loud sounds would cause the ossicles to move too much, potentially causing damage to the inner ear  
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Sergio [31]

Answer:

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