One of the primary advantages of CCDs over photographic plates is the former's high efficiency in detecting light. (T/F)
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A: Hyperspectral imaging typically has higher spectral resolution than multispectral imagery, but lower…
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A: Given data: Distance (d) = 1.4×1012 m 1 min = 60 s Required: The time (t) taken by light to reach…
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A: The resolving power or angular resolution of a telescope is its ability to differentiate between two…
Q: Compared to a 0.2 m diameter telescope, a 0.4 m diameter telescope has how much more light gathering…
A: The diameter of telescope 1: d1 = 0.2 m The diameter of telescope 2: d2 = 0.4 m
Q: Explain in a paragraph, what is the TMT and why the TMT is considered the most controversial…
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Q: How does the resolving power of the 5-m telescope on Mount Palomar near San Diego compare with that…
A: The property of a telescope that enables it to capture small details of an object is called its…
Q: When would an infrared telescope most likely be used?
A: An infrared telescope will detect and resolve the infrared rays. Since the wavelength of the…
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A: A blackbody is used to model objects that radiate energy. A black body is an ideal object capable of…
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Q: A powerful telescope can observe an object down to about the 30th magnitude in the B-band. To what…
A: Given:- A powerful telescope can observe an object down to about the 30th magnitude in the B-band.…
Q: Why can't we see stars in day time?
A: The Earth we live is a unique planet for human to survive. It contains atmosphere with the suitable…
Q: Astronauts observing from a space station need a telescope with a resolving power of 0.9 arc seconds…
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Q: What if you had to scout for a site to build a new ground-based, optical telescope. What…
A: Introduction: From Galileo to Newton, now telescopes are made larger to study even far away objects.…
Q: Why must most infrared telescopes operate at very high altitudes or in space?
A: We are well aware most of the objects near the earth's surface and even the atmosphere absorb and…
Q: Mars is approximately 1.5 AU away from the Sun. Approximately how long does it take light to reach…
A: Mars is the 4th planet from the sun, with distance ranging around 1.5AU. 1 A.U = 1.496 × 108 km∴ 1.5…
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A: 1. When so bubble is exposed to white light , a phenomena of interference occurs as a result we see…
Q: Optical and radiotelescopes are built on the ground but X-ray astronomy is possible only from…
A: Optical and radio telescopes are built on the ground but X-ray telescope are only build on satellite…
Q: (diameter LGP = Area = t 2
A: The Light Gathering Power is calculated as : LGP = Area = π (diameter/2)2
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A: Step 1: The use of aluminum foil was an effective design element because electromagnetic (light)…
Q: Why infrared telescopes are kept above the atmosphere and require extra cooling ?
A: The infrared region of the electromagnetic spectrum covers wavelengths from 0.7 to 100 µm.…
Q: What are the arguments for building the TMT telescope?
A: TMT telescope is an abbreviation of The Thirty Meter Telescope. This telescope is very large…
Q: How does the light-gathering power of a 300-m diameter radio telescope compare to that of a 50 m…
A: Given: Diameter of the light gathering power 1,D1=300mDiameter of the light gathering power…
Q: Which of the following pairings of telescope diameter and observational wavelength would give the…
A: The resolving power of a telescope is given by, R = 1∆θ= d1.22 λ where ∆θ is the angular resolution…
Q: You wish to observe an astronomical object whose spectrum peaks in the UV. This object is bright and…
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Q: In a cassegrain telescope, where does the light go after it passes through the aperture?
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Q: justify the expenditure of space telescopes . discuss their ability with gamma and x ray wavelengths…
A: A space telescope, also known as a space observatory, is a telescope that is placed in space and…
Q: A charged-couple device (CCD) detector ismounted at the focus of an f/7 reflecting telescope with a…
A: Let s be the plate scale of the telescope. It is evaluated using the following relation.
Q: How do you measure distance using a terahertz imaging system?
A: Terahertz imaging systems usually don't directly measure distance in the same way as a ruler does.…
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- x(t)=Ccos(wt+q) show that Acos(wt)+Bsin(wt)=Ccos(wt+q) is equal to A=Ccos(q) B=Csin(q)Geostationary satellites cannot be seen in a telescope from Albany because they are always directly over the Equator. True FalseFor a human eye with a pupil diameter (aperture diameter D) of 0.005 meters, and a focal length of 0.022 meters, there will be a resolution limit due to diffraction at 0.6 microns (10^-6 meters) wavelength. If we space light-sensitive cells on the retina at this spacing, how many retina cells per meter (of retina) are there? cells/meter. Now suppose there are giants which are exactly twice the size of humans in each dimension. So giant eyes have pupils of 0.01 meters, and a focal length of 0.044 meters. How many retina cells per meter should the giants have? cells/meter
- Cas A SNR North Lobe Chandra ACIS image (M. Stage) region of spectrum-> 10* km/s (be sure to convert your answer to kilometers!) (Enter a positive value--if you get a negative answer ignore the minus sign.) 1000 100 Combine counts / Ang./ (0.964324 sq. arcsec) 10 1 0.1 Cas A Ms Spectrum from 4362.5 4458.5, region size 0.964324 sq. arcsec Silicon line werden der 5 10 20 Wavelength (Angstroms) The speed of the material ejected in a supernova can be measured by using the Doppler shift of the X-ray emission lines in its spectrum. The images above show real X ray data of the Cassiopeia A supernova remnant and a spectrum extracted from that data--you can see several emission lines including the silicon line near 6.6 angstroms (0.66 nm). If the emission line created by silicon normally has a wavelength of 0.6648 nm (nanometers), but is measured in the spectrum to have a wavelength of 0.6599 nm, how fast is the gas moving?Why does Israel always launch its photoreconnaissance satellites to the west? because it is impossible to reach orbit if you launch to the east from Israel's latitude because photoreconnaissance satellites must be in westward-moving orbits to work properlyCompare the light-gathering power of a 10 m Keck telescope with that of a 0.9 m telescope.