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jekas [21]
3 years ago
12

What problem do refractor telescopes have that reflectors don't? Group of answer choices bad seeing light loss from secondary el

ements diffraction limited resolution spherical aberration chromatic aberration
Physics
1 answer:
Paul [167]3 years ago
8 0

chromatic aberration problem do refractor telescopes have that reflectors don't

<u>Explanation:</u>

Chromatic aberration is a phenom in which light rays crossing through a lens focus at various points, depending on their wavelength. Chromatic aberration is a dilemma in which lens or refracting, telescopes undergo from. The various image distances for the respective colors affect various image sizes for them.

This involves the creation of disturbing color fringes in the image. Chromatic aberration can be pretty well adjusted by the use of an achromatic doublet. Here, a positive biconvex lens is coupled with a negative lens placed backward with greater dispersion. Thus partly compensates for the chromatic aberration.

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a person hears an echo from the top of a tower , 2.2 second after the sound is produced.how far away is the tower from the perso
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Answer:

730.4 m

Explanation:

The sound waves travels with a uniform motion (=constant velocity), therefore we can calculate the distance it travels using the formula:

d=vt

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d is the distance

v is the speed of the sound wave

t is the time taken

In this problem we have:

v = 332 m/s is the speed of sound in air

t = 2.2 s is the time elapsed

Therefore, the distance between the tower and the person is

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Explain why not everyone can become a bodybuilder, even if they train hard enough.
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Which element is most likely to have an oxidation number of +3?
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Answer:

A different answer to this is AI

Explanation:

4 0
3 years ago
A small spinning asteroid is in a circular orbit around a star, much like the earth's motion around our sun. The asteroid has a
Fudgin [204]

Answer:

Temperature will be 305 K  

Explanation:

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T^4=87.0381\times 10^8

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