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Can the unaided eye resolve a crater on the moon whose angular diameter is 1 arc minute times 60 arc seconds. Take the pupil diameter to be 5 millimeters and the wavelength........?
Adh99
I can resolve 100 arc seconds. If craters are 60 arc seconds I'd bet that there are people whose eyes are good enough. 60 arc seconds is certainly within the 20 arc second maximum capability of the eye.
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∙ 11y ago
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What is the biggest star in the solar system except from the sun?
no one know what the biggest sun in the universe it grows every day making new stars it could be making one when you are reading this. a sun is a star but most of the time it is our star what only called sun. most of smart people say in our solar system there is just one star called to us the sun but we can see out of this solar system their say and we can see 7 more star and the biggest is a star unnamed and it is more then 1000.000.000.000X the sun it self and if you put earth next to it it is just a peace of dust of the size of them both and the biggest we can see is the 15 biggest star in the universe so that is the best I can get you I hope you like my answer
If the earth were to resolve on its axis faster than it does today its shape would what?
Earth is not round! It's shape is an ellipsoid (a squashed sphere), if the rotation increases then the ellipsoid will be flatter.
How big is Spica?
Spica (Alpha Virginis) is the brightest star in the constellation Virgo.It is in fact a close binary star system so it is impossible to resolve individual stars through a telescope.It is approximately 7.4 times larger than our Sun. So it has a radius of about 5,150,400 km
Why is there so much about Mars and so little about Neptune?
One can resolve surface details of Mars through a good amateur telescope. Olympus Mons, Vallis Marineris, and the polar ice caps which expand and recede through the martian seasons. Neptune is much further away, a somewhat featureless gas giant, with a low albedo. We have landed numerous spacecraft on Mars, but have not sent anything to Neptune specifically (that I recall).
What angular resolution would you need to see the Sun and Jupiter as distinct points of light if you were looking at it from 15 light years away?
Great question to chew on ! And I think I can work it out, at leastto an order-of-magnitude approximation.Radius of Jupiter's orbit is around 5 AU = 5 x 93 million = 465,000,000 miles.15 light years = 15 x 5.8787 x 1012 = 8.818 x 1013 miles(Tangent)-1 of (5 AU / 15 LY) = 0.000302 degree = roughly like 1.09 arc-second.There's a rule for the resolution you need in order to completely resolve two sourcesthat subtend a given angle, and I don,t remember what it is. But the order of magnitudefor this particular case is about 1 arc-second ... with one bright object and a dim one.That calculation looks right and the separation can theoretically be resolved by a telescope with a 4½" aperture. But there is a big difference in brightness because the Sun would be a star of magnitude 3.2 while Jupiter's magnitude would be about 21. So a considerably bigger telescope would be needed because to see something that dim needs a big aperture, round about 100".
Why did scientists believe in a neutrino long before it was detected?
This was because of laws of conservation of: momentum, angular momentum, and energy. In certain reactions, these were apparently not conserved; a hypothetical particle would resolve the observed discrepancy.This was because of laws of conservation of: momentum, angular momentum, and energy. In certain reactions, these were apparently not conserved; a hypothetical particle would resolve the observed discrepancy.This was because of laws of conservation of: momentum, angular momentum, and energy. In certain reactions, these were apparently not conserved; a hypothetical particle would resolve the observed discrepancy.This was because of laws of conservation of: momentum, angular momentum, and energy. In certain reactions, these were apparently not conserved; a hypothetical particle would resolve the observed discrepancy.
What can be used to find m the number of meters in 9700 millimeters?
The list you provided with your question does not include anything that can be used to resolve that situation. But since 1,000 millimeters = 1.000 meter 2,000 millimeters = 2.000 meters 3,000 millimeters = 3.000 meters . . . 9,000 millimeters = 9.000 meters, it ought to be pretty obvious that 9,700 millimeters = 9.700 meters.
If the sun was replaced by a typical neutron star what would the angular diameter of the neutron star be as seen from earth?
The sun measures about 32 arc minutes as seen from earth. It is a big ball with a diameter of some 1.392 x 109 meters. Taking the sun away and sticking in a typical neutron star would mean substituting that big ball with something only some 20 to 40 kilometers in diameter. The neutron star is miniscule compared to the sun. A ball 30 kilometers in diameter is small compared to earth!We've reduced the problem to an exercise in mathematics. If the sun at 1.392 x 109 meters in diameter is replaced with something only 3 x 104 meters in diameter, then the neutron star will appear to have an angular diameter of 0.000000115 seconds of arc.Sun = 32 minutes of arcNeutron star = 0.000000115 seconds of arcIt would take a pretty big telescope to be able to resolve something as small as a neutron star at a distance of some 93 million miles. The object being sighted in on is pretty small.
What microscope is the least powerful?
Short Answer: The unaided human eye which has a magnification of 1X and can resolve details down to about 0.2 millimeters. Longer Answer: Depending on the type of lens a single lens magnifier can magnify up to about 12X and resolve down to 17 micrometers. A multiple lens achromatic magnifier can go up to about 25X and resolves down to about 8 micrometers. Stereo microscopes that can easily view 3-D objects go up to about 1000X and resolve down to about 150 nanometers. Likewise, any optical microscope is limited by the diffraction limit of light to about 1300X of usable magnification. More magnification will just produce a larger version of the image that is blurry since it is not possible to sharpen the focus beyond the 150 nanometer diffraction limit. Microscopes that use ultraviolet light, which has a shorter wavelength that can focus tighter, can resolve down to 10s of nanometers or about 10 times better than visible light microscopes for a magnification of 10,000 X. Modern Scanning Electron Microscopes (SEM) are capable of resolving down to about 0.2 nanometers which translates to a useful magnification of 1,000,000 X. Specialized types of electron microscopes (Field Emission Transmission Electron Microscopes) can resolve down to 0.05 nanometers which translates to a magnification of 2,500,000 X. For reference, a carbon atom is about 15 nanometers in diameter.
What part of speech is resolve?
Resolve can be a verb or a noun. As a verb: Please resolve the problem by the end of this month. As a noun: The information, instead of stopping her, strengthened her resolve.
What is a numerical aperture in light microscope?
This is a number that expresses the ability of a lens to resolve fine detail in an object being observed fixed to a slide. It is derived by a mathematical formula (n sine u) and is related to the angular aperture of the lens and the index of refraction of the medium found between the lens and the specimen.
What parts of speech is resolve?
Resolve is a noun. It describes an action.
How can you use the word resolve in sentence?
Resolve the question on the board.
What is the past tense of resolve?
The past tense of resolve is resolved.
When was The Resolve created?
The Resolve was created on 1915-05-31.
When was Lights Resolve created?
Lights Resolve was created in 2006.
How do you use the word resovle in a sentence?
I resolve to get an A on this test!He had no resolve to quit smoking.The group discussed but could not resolve the problem.
