The Keck telescope has a 10 m diameter mirror, and the human eye has about a...
The Keck telescope has a 10 m diameter mirror, and the human eye has about a 4 mm radius. How much more light can it collect with respect to the Human eye?
- 10 times
- About 1.5 million times
- About 6.25 million times
- About 1250 times
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The Keck telescope has a 10 m diameter mirror, and the human eye
has about a...
1. If you had a telescope that had a mirror 10 times the diameter of the...
1. If you had a telescope that had a mirror 10 times the diameter of the human eye, how much more light would it collect? 2. Give two reasons why putting telescopes into space allows us to see things we would not be able to see from the ground.
The Keck Telescope has a diameter of 10.0 m. When it is looking at Mars, 7.38•1010...
The Keck Telescope has a diameter of 10.0 m. When it is looking at Mars, 7.38•1010 m from us, how far apart are the closest objects it could possibly resolve? Assume the light has wavelength 633 nm. [?] m Remember: nano means 109 Enter
The Hubble Space Telescope has a mirror diameter of 2.4 m. Suppose the telescope is used...
The Hubble Space Telescope has a mirror diameter of 2.4 m. Suppose the telescope is used to photograph stars near the center of our galaxy, 30,000 light years away, using red light with a wavelength of 720 nm . A) What's the distance (in km) between two stars that are marginally resolved? The resolution of a reflecting telescope is calculated exactly the same as for a refracting telescope. B) For comparison, what is this distance as a multiple of the...
3) (10 pts) The Thirty Metre Telescope (TMT) is a 30m diameter telescope to be built...
3) (10 pts) The Thirty Metre Telescope (TMT) is a 30m diameter telescope to be built on Mauna Kean in Hawaii. The Hubble Space Telescope is a 2.4m diameter telescope in orbit around the Earth. a) (2.5 pts) What are the angular resolutions of both telescopes when observing in "visible" light (1 = 550 nm)? How many times better or worse is the HST compared to the TMT? b) (2.5 pts) What are the angular resolutions of both telescopes when...
The Hubble Space Telescope (still operational) has a mirror with a diameter of 2.4 m. What is the...
The Hubble Space Telescope (still operational) has a mirror with a diameter of 2.4 m. What is the maximum resolution of Hubble when observing Mars at closest approach (typically 7.5 x 1010 m away)? Since Mars is mostly red, assume the light is reddish, with a wavelength of 630 nm. Could Hubble resolve the Endeavor crater (diameter 22 km) on Mars? 1. 2. Calculate the angle of incidence at which light reflecting off of crown glass (with an index of...
The primary mirror on a telescope that orbits 600 km above Earth has a diameter of...
The primary mirror on a telescope that orbits 600 km above Earth has a diameter of 2.4 m. a) Calculate the minimum angular separation that it might resolve for visible light. b) Assume that the telescope is viewing Earth’s surface. What is the separation of the most closely spaced objects that it might resole?
1. A telescope has a focal ratio of 10 (typically stated as f/10). If the aperture...
1. A telescope has a focal ratio of 10 (typically stated as f/10). If the aperture of the objective mirror or lens is 6 inches (152.4mm), what is the focal length of the lens? 2. What is the light-gathering power of the above telescope's objective when compared to a human eye dilated to 8mm?
10) The primary mirror of the Subaru reflecting telescope in Mauna Kea, Hawaii is 8.3 m...
10) The primary mirror of the Subaru reflecting telescope in Mauna Kea, Hawaii is 8.3 m in diameter. Using the Rayleigh criterion, what is the minimum angular separation of two distant visible objects that this telescope can resolve? Use lo = 550 nm.
4. An adult human eye has a diameter of 8 mm. (a) What is the theoretical...
4. An adult human eye has a diameter of 8 mm. (a) What is the theoretical smallest possible angle (diffraction limit) that can be discerned at 550 nm? [arcsec] (b) Compare this with the average angular diameter of Jupiter as seen from Earth [arcsec]. Assume Jupiter is at a distance of 5 AU and it has a diameter of 138,350 km.
Deep in the physics and astronomy basement storeroom, you find a very large concave spherical mirror from an old telescope. The mirror is 2 m across, and has a radius of curvature of 14.0 m. Because...
Deep in the physics and astronomy basement storeroom, you find a very large concave spherical mirror from an old telescope. The mirror is 2 m across, and has a radius of curvature of 14.0 m. Because this is just a small piece of such a large sphere, the angle of incidence for on-axis rays will always be below 5°, minimizing spherical aberration You try out the mirror for use as a full-length wall mirror. If you look at yourself in...
The Keck Telescope has a diameter of 10.0 m. When it is looking at Mars, 7.38•1010 m from us, how far apart are the closest objects it could possibly resolve? Assume the light has wavelength 633 nm. [?] m Remember: nano means 109 Enter
3) (10 pts) The Thirty Metre Telescope (TMT) is a 30m diameter telescope to be built on Mauna Kean in Hawaii. The Hubble Space Telescope is a 2.4m diameter telescope in orbit around the Earth. a) (2.5 pts) What are the angular resolutions of both telescopes when observing in "visible" light (1 = 550 nm)? How many times better or worse is the HST compared to the TMT? b) (2.5 pts) What are the angular resolutions of both telescopes when...
The Hubble Space Telescope (still operational) has a mirror with a diameter of 2.4 m. What is the maximum resolution of Hubble when observing Mars at closest approach (typically 7.5 x 1010 m away)? Since Mars is mostly red, assume the light is reddish, with a wavelength of 630 nm. Could Hubble resolve the Endeavor crater (diameter 22 km) on Mars? 1. 2. Calculate the angle of incidence at which light reflecting off of crown glass (with an index of...
1. A telescope has a focal ratio of 10 (typically stated as f/10). If the aperture of the objective mirror or lens is 6 inches (152.4mm), what is the focal length of the lens? 2. What is the light-gathering power of the above telescope's objective when compared to a human eye dilated to 8mm?
10) The primary mirror of the Subaru reflecting telescope in Mauna Kea, Hawaii is 8.3 m in diameter. Using the Rayleigh criterion, what is the minimum angular separation of two distant visible objects that this telescope can resolve? Use lo = 550 nm.
Deep in the physics and astronomy basement storeroom, you find a very large concave spherical mirror from an old telescope. The mirror is 2 m across, and has a radius of curvature of 14.0 m. Because this is just a small piece of such a large sphere, the angle of incidence for on-axis rays will always be below 5°, minimizing spherical aberration You try out the mirror for use as a full-length wall mirror. If you look at yourself in...
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