thanks :D
2007-05-05 07:34:43 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
False - it would be a lens.
2007-05-05 10:14:33 · answer #1 · answered by Shaula 7 · 2⤊ 0⤋
The answer is FALSE. The primary objective of a refracting telescope is a lens, usually but not necessarily an achromatic lens. A mirror would be the primary objective of a refracting telescope.
2007-05-06 17:42:14 · answer #2 · answered by Marshall S 1 · 0⤊ 0⤋
As was already written here. You should not clean your mirror unless necessary. It is much better to prevent it from getting dirty. Cup your telescope every time when not in use. Dust on your mirror won't affect picture quality at all. It will take years for dust to built up to such a level that it will degrease mount of reflected light so You should definitely not clean your mirror more that once per 10 years. I had my oldest telescope for nine years and there was some dust on the mirror I've cleaned the mirror for the first time and picture was the same so I don't see any point in doing that. There are astronomers here with more years of experience than I have maybe they will tell you some better time scale how often you should clean the mirror. But I know for sure that won't clean my mirrors in this decade. :)
2016-05-21 02:26:02 · answer #3 · answered by Anonymous · 0⤊ 0⤋
False,
The primary objective of a Refracting telescope is a lens.The refracting telescope design was originally used in spy glasses and astronomical telescopes
2007-05-05 07:40:55 · answer #4 · answered by allan 2 · 0⤊ 0⤋
False:
A "refractor" is named because of how it operates. When a ray of light traveling in a medium (such as air) strikes and enters another medium (such as glass) its direction of travel changes. This is because the velocity of light in glass is slower than the velocity of light in air. The measurement of this change or difference is called "the index of refraction."
Hence the name refractor as the light is "refracted" through the lens toward the back of the telescope and into the eyepiece.
Reflectors use mirrors to reflect light to the eyepiece. Mirrors do not refract light.
2007-05-06 12:04:18 · answer #5 · answered by Preston S 2 · 0⤊ 0⤋
Hi False. http://www.answers.com/main/ntquery?s=refracting+telescope&gwp=13
2007-05-05 07:37:04 · answer #6 · answered by Cirric 7 · 0⤊ 0⤋
false
because the primary objective of a refracting telescope is a lens. this lens bends the light it recives to focal point at the eye piece.
2007-05-05 07:44:32 · answer #7 · answered by martinpaul2001 3 · 1⤊ 0⤋
FALSE
a mirror will reflect the light, a lens will refract it. :)
2007-05-05 10:10:01 · answer #8 · answered by Anonymous · 0⤊ 0⤋