Principles of Physics: A Calculus-Based Text
5th Edition
ISBN: 9781133104261
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 27.7, Problem 27.5QQ
Suppose you are observing a binary star with a telescope and are having difficulty resolving the two stars. You decide to use a colored filter to maximize the resolution. (A filter of a given color transmits only that color of light.) What color filter should you choose? (a) blue (b) green (c) yellow (d) red
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Please answer both:The brightest star in the Pointers is α Centauri. It is actually a binary star, with two components known as α Cen A and α Cen B.
They orbit each other for a period of about 80 years. At the moment they are separated by about 5 arcseconds in the sky.
a) The average eye has a pupil diameter of 3mm, increasing to about 7mm at night. What is the theoretical best resolution for the human eye, at 500 nm? (Enter your answer in arc seconds, to the nearest whole number)
b) Could you separate the two components with your naked eye (at 500 nm)?
Suppose you are observing a binary star with a telescope and are having difficulty resolving the two stars. You decide to use a colored filter to maximize the resolution. (A filter of a given color transmits only that color oflight.) What color filter should you choose? (a) blue (b) green (c) yellow (d) red
Suppose an astronomer is observing a binary star with a telescope and is having difficulty in resolving the two stars. She decides to use a coloured filter to maximize the resolution. A filter of a given colour transmits only that colour of light. What colour filter should she use?
Chapter 27 Solutions
Principles of Physics: A Calculus-Based Text
Ch. 27.3 - Which of the following causes the fringes in a...Ch. 27.5 - In a laboratory accident, you spill two liquids...Ch. 27.5 - Prob. 27.3QQCh. 27.6 - Prob. 27.4QQCh. 27.7 - Suppose you are observing a binary star with a...Ch. 27.8 - Ultraviolet light of wavelength 350 nm is incident...Ch. 27 - Consider a wave passing through a single slit....Ch. 27 - Prob. 2OQCh. 27 - Suppose Youngs double-slit experiment is performed...Ch. 27 - Prob. 4OQ
Ch. 27 - Prob. 5OQCh. 27 - Prob. 6OQCh. 27 - A monochromatic beam of light of wavelength 500 nm...Ch. 27 - A film of oil on a puddle in a parking lot shows a...Ch. 27 - Prob. 9OQCh. 27 - A Fraunhofer diffraction pattern is produced on a...Ch. 27 - Prob. 11OQCh. 27 - Prob. 12OQCh. 27 - Why is it advantageous to use a large-diameter...Ch. 27 - Prob. 1CQCh. 27 - Prob. 2CQCh. 27 - Prob. 3CQCh. 27 - Prob. 4CQCh. 27 - Why is the lens on a good-quality camera coated...Ch. 27 - Prob. 6CQCh. 27 - Prob. 7CQCh. 27 - Prob. 8CQCh. 27 - A laser beam is incident at a shallow angle on a...Ch. 27 - Prob. 10CQCh. 27 - Prob. 11CQCh. 27 - Prob. 12CQCh. 27 - John William Strutt, Lord Rayleigh (1842–1919),...Ch. 27 - Prob. 1PCh. 27 - Youngs double-slit experiment underlies the...Ch. 27 - Two radio antennas separated by d = 300 m as shown...Ch. 27 - Prob. 4PCh. 27 - Prob. 5PCh. 27 - Prob. 6PCh. 27 - In Figure P27.7 (not to scale), let L = 1.20 m and...Ch. 27 - Prob. 8PCh. 27 - Prob. 9PCh. 27 - Prob. 10PCh. 27 - Two slits are separated by 0.180 mm. An...Ch. 27 - Prob. 12PCh. 27 - A pair of narrow, parallel slits separated by...Ch. 27 - Coherent light rays of wavelength strike a pair...Ch. 27 - Prob. 15PCh. 27 - Prob. 16PCh. 27 - A riverside warehouse has several small doors...Ch. 27 - Prob. 18PCh. 27 - Prob. 19PCh. 27 - Astronomers observe the chromosphere of the Sun...Ch. 27 - Prob. 21PCh. 27 - Prob. 22PCh. 27 - A beam of 580-nm light passes through two closely...Ch. 27 - Prob. 24PCh. 27 - An air wedge is formed between two glass plates...Ch. 27 - Prob. 26PCh. 27 - Prob. 27PCh. 27 - Prob. 28PCh. 27 - Prob. 29PCh. 27 - Prob. 30PCh. 27 - Prob. 31PCh. 27 - Prob. 32PCh. 27 - A beam of monochromatic green light is diffracted...Ch. 27 - Prob. 34PCh. 27 - Prob. 35PCh. 27 - Prob. 36PCh. 27 - Prob. 37PCh. 27 - Prob. 38PCh. 27 - Prob. 39PCh. 27 - White light is spread out into its spectral...Ch. 27 - Prob. 41PCh. 27 - Prob. 42PCh. 27 - Prob. 43PCh. 27 - Prob. 44PCh. 27 - Prob. 45PCh. 27 - Prob. 46PCh. 27 - Prob. 47PCh. 27 - Prob. 48PCh. 27 - Prob. 49PCh. 27 - Prob. 50PCh. 27 - Prob. 51PCh. 27 - A wide beam of laser light with a wavelength of...Ch. 27 - Prob. 53PCh. 27 - Prob. 54PCh. 27 - Prob. 55PCh. 27 - Prob. 56PCh. 27 - Prob. 57PCh. 27 - Prob. 58PCh. 27 - Prob. 59PCh. 27 - Prob. 60PCh. 27 - Prob. 61PCh. 27 - Prob. 62PCh. 27 - Both sides of a uniform film that has index of...Ch. 27 - Prob. 64PCh. 27 - Light of wavelength 500 nm is incident normally on...Ch. 27 - Prob. 66PCh. 27 - A beam of bright red light of wavelength 654 nm...Ch. 27 - Iridescent peacock feathers are shown in Figure...Ch. 27 - Prob. 69PCh. 27 - Prob. 70PCh. 27 - Figure CQ27.4 shows an unbroken soap film in a...
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- An observatory uses a large refracting telescope that has an objective lens of diameter, 1.00 m. The telescope resolves images with green light of wavelength 550 nm. If the telescope can barely resolve two stars in a binary system in which the stars are 2.0 x 1011 m apart, how far away is the system? Assume that 1 light year = 9.461 x 1015 m.arrow_forwardA binary star system (two stars that are orbiting each other) are observed using 2 = 538 nm. The system is 16 ly away and the two stars are barely resolved by a 71 cm (mirror diameter) telescope. Determine the minimum distance between the stars. 1 ly = 9.461 x 1015 m.arrow_forwardA binary star consists of two stars orbiting each other. Suppose a binary pair is known to be 580.0 light years away from Earth. How far apart are the two stars from each other, in light years, if they can just be resolved by a telescope with an aperture of 50 cm (0.50 m), using visible light (l = 550 nm)? (1 nm = 1 x 10-9 m)arrow_forward
- On a clear evening during the winter months, if you look up at the sky, you can see the constellation Orion (The Hunter). One star is this constellation Rigel, flickers in a blue color (λ = 400 nm), and another star, Betelgeuse, has a reddish color (λ = 750 nm). What is the difference of the surface temperature for these two stars?arrow_forwardYou want a telescope that discerns objects that are at least 5.10 * 10-7 radians apart. To achieve this resolution, determine what the diameter of the primary mirror must be if you are making observations at a wavelength of 583 nm. A binary star system is 41.3 ly away. the two stars would just barely be able to be discerned by your telescope. determine the minimum distance between the stars. ly = 9.461 *1015arrow_forwardA star is located 4.2441 ly away. There is a planet orbiting this star with an orbital radius of 0.0485 AU (AU stands for astronomical unit - the average distance between Earth & the Sun). Fill in the table by determining the minimum diameter the objective of a telescope would need to be in order to resolve the planet from the star at the stated wavelengths. 1 ly = 9.461 × 1015 m & 1 AU = 1.496 × 1011 m. ?(nm) 200 400 600 800 1000 minimum diameter of objective(m) ? ? ? ? ?arrow_forward
- The image shows the spectra of two objects, labeled 1 and 2. Which of the following statements is a correct interpretation of these spectra? Intensity 1 2 Wavelength object 1 is brighter than object 2 at all wavelengths O object 1 is blueshifted so it is moving toward us O object 1 is closer to us than object 2 O object 1 is redshifted so it is moving away from us O object 1 is blueshifted so it is moving away from usarrow_forwardIf you were to observe the sunset on the Moon, would you see the space around the sun as red, like you do on earth? Yes, because the color of light is independent of where you are. No, you would see it blue because of scattering of light. It would depend on the time of the day when you look at the sky. You would not because there is no atmosphere on the moon to scatter the light. You would not because the moon absorbs all the colors of light. You would see it black because the moon reflects all the colors. Yes, you would see it red like on the earth because both the moon and the earth are spehrical.arrow_forwardYou wish to observe an astronomical object whose spectrum peaks in the UV. This object is bright and you want to study its absorption lines, so you need a detailed spectrum. Please describe the type of telescope (refracting vs reflecting) you would want to use as well as where it should be located for best effect. You should also consider if you need a large telescope or a small one would suffice.arrow_forward
- Go outside on a clear night, wait 15 minutes for your eyes to adjust to the dark, and look carefully at the brightest stars. Some should look slightly red and others slightly blue. The primary factor that determines the color of a star is its temperature. Which is hotter: a blue star or a red one? Explainarrow_forwardA star emits visible color at 550 nm . If the star is moving away from a stationary observer, which of the following cannot be the wavelength observed? 530 nm O 552 nm 571 nm 584 nmarrow_forwardThe diameter of the Arecibo radio telescope is 307 m. It can image radio source that emit electromagnetic waves with wavelength between 3 cm and 1 m. The Virgo Cluster is a cluster of galaxies whose center is ~53.8 Mly away from us. Assume the telescope is imaging at a wavelength of 63.3 cm and can just resolve two point sources of radio waves in the Virgo cluster. How close together could these point sources be, i.e. what is the minim distance between them in ly? Enter an integer.arrow_forward
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