0
What else can I help you with?
The Hubble Space Telescope obtains higher-resolution images than most ground-based telescopes because it is?
Only because it gets no atmospheric interference, which most of the ground based telescopes do.
Which colour of visible light would give the best resolution in a microscope?
Blue light provides the best resolution in a microscope because of its shorter wavelength compared to other colors in the visible light spectrum. The shorter wavelength allows for greater detail and resolution when viewing microscopic specimens.
If you wanted a radio telescope to achieve the same angular resolution as a visible-light telescope it would need to be?
much larger in size because radio waves have longer wavelengths compared to visible light. A radio telescope would need a larger dish or antenna to achieve the same angular resolution as a visible-light telescope due to the longer wavelengths involved in radio astronomy.
What is the difference between a reflecting telescope a refracting telescope and a radio telescope?
Reflecting telescopes are usually designed to capture and concentrate light through the use of a large concave mirror which focuses the captured light on a smaller, flat mirror which in turn reflects it to the eye or a camera. Refracting telescopes use convex lenses to capture light and focus it where the eye or a camera is. Radio telescopes collect long wavelength radiation (radio waves and microwaves) and are all forms of reflecting telescope. The first telescopes were refracting telescopes, because the technology existed to form the needed sizes of convex lenses. Reflecting telescopes were developed later, when advancing technology provided the means of making very regular concave mirrors. All the largest modern telescopes are variations on the reflecting telescope design because it is easier to make and manage very large concave mirrors than it is to make lenses of equivalent light collecting power.
Why are large telescopes used to study distant galaxies and not small telescopes?
Large telescopes are used to study distant galaxies because they can gather more light, allowing for better resolution and the ability to detect fainter objects. Their larger size also grants them a greater light-gathering capacity, which is essential for observing objects that are billions of light-years away. Additionally, large telescopes offer higher sensitivity and better data collection capabilities, enabling astronomers to analyze and study distant galaxies in greater detail.
Why are radio telescopes typically built so large compared with optical telescopes?
Radio telescopes are much larger than optical telescopes because of wavelength. Earth's atmosphere has two major "windows" where it is transparent to photons: 300 nm - 800 nm: optical wavelength window (approximate) 30 mm - 30 m: radio wavelength window (approximate) Even the shortest-wavelengths used by radio telescopes at around 30 mm are still thousands of times longer than the longest wavelengths used by optical telescopes. The wavelength has 2 effects on the size of a telescope: * The angular resolution (in order to distinguish 2 nearby stars, FWHM) depends on the wavelength/aperture ratio. Radio-frequency photons require a wider aperture to focus than visible-light-frequency photons, so radio telescopes *must* be larger to get a reasonable resolution. * A telescope typically requires the collecting area to be aligned within 1/10 of the wavelength it is designed for. Because it is almost impossible to get all the parts of a sufficiently large telescope aligned to within 80 nm, radio telescopes *can* be built much larger.
What is the angular resolution formula in astronomy and how does it impact the clarity of celestial observations?
The angular resolution formula in astronomy is given by the equation: θ = 1.22 * λ / D, where θ is the angular resolution, λ is the wavelength of light, and D is the diameter of the telescope. This formula determines the smallest angle at which two objects can be distinguished by a telescope. A smaller angular resolution means better clarity in celestial observations, allowing for finer details to be seen.
The resolution of radio telescopes has been improved by what spectrographs charge-coupled devices photometers or interferometers?
interferometers because charge-coupled devices are only used in optical telescopes
Why shorter the wavelength greater the resolution?
Shorter wavelengths allow for greater detail to be resolved because they interact with smaller structures and features on the object being observed. As the wavelength decreases, the resolution increases because the diffraction limit is reduced, allowing for sharper images to be produced. This relationship is described by the Rayleigh criterion, which states that the resolution of an optical system is directly proportional to the wavelength of the light being used.
The Hubble Space Telescope obtains higher-resolution images than most ground-based telescopes because it is?
Only because it gets no atmospheric interference, which most of the ground based telescopes do.
Which colour of visible light would give the best resolution in a microscope?
Blue light provides the best resolution in a microscope because of its shorter wavelength compared to other colors in the visible light spectrum. The shorter wavelength allows for greater detail and resolution when viewing microscopic specimens.
Why does resolution power not depend on numerical aperture in EM?
The minimum resolvable separation distance of a light microscope depends on the wavelength of illumination and the numerical aperature. Because the electron beam has a far smaller wavelength than light used in light microscopy, it achieves far better resolution and it doesn't even involve the NE.
Why is wavelength the main limiting factor on resolution in light microscopy?
The reason for the wavelength being the limiting factor for the resolution is because since humans see only in the visible spectrum of light, we are limited to only being able to see objects of a size that is much larger than the wavelength of the light being used to observe them. So if we could "see" in a different part of the spectrum such as in x-rays or more, we could use regular light microscopes to view finer details. In other words, the limit occurs because when you are trying to resolve an object that is too small, light reflecting off of 2 points on the surface that are near each other ( the size of the wavelength) can interfere destructively (they cancel each other) and we wouldn't see anything.
Does linear motion have angular momentum?
I believe that any particle in linear motion must also have some angular momentum because all particles have spin. In the case of a photon the spin, wavelength and angular momentum all vary with the relative linear velocity. So in my point of view time itself is the ratio between relative linear and angular momentum.
Which wavelength has the highest frequency?
Shorter wavelengths produce a higher resolution because it allows you to see points that are closer together.
What is the proportional relationship between wavelength and resolution?
The main way wavelength affects light is it's color. You see, the shorter waves are colors like violet, whereas the longer waves are closer to red. Anything longer than red can not be seen by the human eye, as anything shorter than violet cannot be seen with our eyes.
What name is given to layers of tilted rocks that are overlain by younger more flat lying rock layers?
angular unconformity
