Which of the following best describes the function of the objective lens (or mir

Question

Which of the following best describes the function of the objective lens (or mirror) in a telescope?

Question options:

A)

B)

C

To magnify the image made by another lens so it is easier to see.

Which of the following is the most important function of the long tube that is a part of many telescopes?

Question options:

A)

B)

C)

To stop light from escaping from the telescope

Astronomers regard a telescope's magnifying power to be the most important aspect of its performance. True or false?

Question options:

False

If you were to increase the diameter of the aperture and objective element (lens or mirror) of a telescope, what would happen to its light gathering power (LGP) and its theoretical resolving power (RP)?

Question options:

A)

B)

C)

D)

A)

To focus the light coming from distant objects and make an image of them that is larger than the objects themselves.

B)

To focus the light coming from distant objects and make small images of them.

C

To magnify the image made by another lens so it is easier to see.

Which of the following is the most important function of the long tube that is a part of many telescopes?

Question options:

A)

To stop dust, dirt, and bugs from getting into the telescope.

B)

To hold the lenses/mirrors in the right place.

C)

To stop light from escaping from the telescope

Astronomers regard a telescope's magnifying power to be the most important aspect of its performance. True or false?

Question options:

True

False

If you were to increase the diameter of the aperture and objective element (lens or mirror) of a telescope, what would happen to its light gathering power (LGP) and its theoretical resolving power (RP)?

Question options:

A)

LGP would get better but RP would get worse

B)

Both the LGP and RP would get better

C)

Both LGP and RP would get worse

D)

LGP would get worse but RP would get better.

Explanation / Answer

In a telescope the objective lens which is in front focuses an image.

so the answer is

B

(2) the most important function which is required is the resolving power for an astronomers so the answer should be false.

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