If a star has a surface temperature of 20,000 K (2.00 × 104 K), at what wavelength will it radiate the most energy?
Q: 13) Calculate the luminosity in watts from the absolute magnitude for the given stars: (a) Sun (M =…
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Q: hich statement is most logical? a Thermal temperature is released in form of photons to slow down…
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Q: If one star has a temperature of 5,000 K and another star has a temperature of 8,500 , how much more…
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Q: If a star has a parallax angle of 0.768" and the width of your pinky is about 1 degree, what…
A: Parallax method is used to find the distances of distant objects. Parallax can be understood with…
Q: How are elements with nuclei heavier than those of hydrogen and helium formed?
A: The process which gives rises to the elements with nuclei heavier than those of hydrogen and helium…
Q: Analyzing the line spectrum from a star, you notice that all the hydrogen lines have wavelengths…
A: Given, The H alpha line of the star is 0.8% longer.
Q: An astronomer might observe in the Milky Way Galaxy have radial velocities as high as 500 km/s (…
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Q: Earth tugs the sun around as it orbits, but it affects the radial velocity of the sun by only 0.09…
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Q: What is the wavelength of maximum intensity (in nm) and the total energy emitted (in J/s/m2) by a…
A: By the Wien's law the relation between Temperature (T) and wavelength is given by,
Q: Find the speed for a star in which this line appears at wavelength 122.5 nmnm.
A: Given wavelength = 122.5 nm Hydrogen transition wavelength = 121.6 nm Speed of light is c = 3×108…
Q: What is the approximate temperature of the sun at its chromosphere ?
A: The chromosphere is the third layer of Sun. It ranges from 400 km to 2100 km above the solar…
Q: Why does hydrogen, which is abundant in the sun's atmosphere, have relatively weak spectral lines,…
A: Atmos has electrons in different energy levels. Spectral lines are formed when electrons make…
Q: In the Sub giant phase which of the following is true? O The star is burning He in the core O The…
A: Given : In the Sub giant phase The star is burning He in the core The star is burning He in a shell…
Q: What is the difference between the peak wavelength of the stellar spectrum and the peak wavelength…
A: The study of Planck curves and star spectra is vital to solving cosmic mysteries in the large field…
Q: The dust in a molecular cloud has a temperature of about 50 K. At what wavelength does it emit the…
A: A blackbody is an ideal object that absorbs all the radiation that falls on it. The blackbody then…
Q: asked this question already but the answer was wrong and I couldn't follow along with the work so I…
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Q: Besides using the peak wavelength emitted in its blackbody curve, how can a star’s spectrum tell you…
A: Introduction: A blackbody is a theoretical or model body that absorbs all radiation falling on it,…
Q: Imagine that you are observing a star and you find the wavelength of peak emission for the star to…
A: required:)wavelength of peak emission for a new star having temperature one third of original star.
Q: What is the wavelength of maximum intensity (in nm) and the total energy emitted (in J/s/m2) by a…
A: The temperature of the celestial body is given to be 7K. In case of a celestial body which we…
Q: If a certain star is 4 times as hot as the sun and is 10000 times brighter than the sun, calculate…
A: Given, Temperature of star, TA=4xTE, Luminosity of star, LA=10000x LE.
Q: Plot the spectral emittance the five bodies in our solar system Listed here: Sun (6000 K) Venus (600…
A: The spectral emittance of a body is given by : Bλ(λ,T)=2hc2λ51ehc/λkT−1Here, h is the planck's…
Q: The above spectrum is most plausibly produced by which kind of object? Select one alternative:
A: Required : Correct choice.
Q: photon torpedo in space has a mass of 10
A: energy released = 7.3*106 Jc = 3*10^8 m/s mass energy equivalence M =E / c^2 M= 0.8123 kg hence…
Q: What is the wavelength of maximum intensity (in nm) and the total energy emitted (in J/s/m2) by a…
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Q: 17.2 (a) Use the fact that f [2³/(e² - 1)] dz = π/15 to show that the total radiant energy emitted…
A: The total radiant energy emitted per unit area by a blackbody is given by the Stefan-Boltzmann law:…
Q: Suppose the temperature of a blackbody increases by 20%. What will happen to the total rate at which…
A: Energy radiated by a blackbody depends on its temperature and the relationship between temperature…
Q: The surface temperature of the Sun is 5,800 K. What wavelength of light is most intense?…
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Q: Here is the emission spectrum for a hydrogen atom. To the best of your knowledge, how do you think
A: Total answers posted by the expert is: 3759 A sample of hydrogen gas is taken in a tube and…
Q: Neutral hydrogens are detected with their emission lines of 21cm. What is the energy of a photon in…
A: Given, The wavelength of the emission line λ=21 cm = 0.21 m The speed of light, c=3×108 m/s Take,…
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- The three most prominent spectral lines of hydrogen are H-α at 656 nm, H-β at 486 nm, and H-γ 434 nm. If we observe an object with H-α at a wavelength of 700 nm, what wavelength will we observe H-β and H-γ? Is the object moving toward or away from us, and how do you know? Suppose we observe another object with H-α at 585 nm. Is this object moving toward or away from us? Is it moving slower or faster than the first object?If one star has a temperature of 5600 K and another star has a temperature of 8000 K, how much more energy per second will the hotter star radiate from each square meter of its surface?What is the luminosity of a star having four times the radius of the Sun and a surface temperature of 8,000 K?
- An astronomer observes several stars with different colors. Rank them in order from highest temperature to lowest temperature. 1 is the highest temperature, 2 is the next highest, 3. Third highest, 4. lowest temperature orange-red star bluish-white star yellowish-white star red starConsider a large interferometer that uses a lazer with the wavelength of 1,073.27 nm (1073.27 x 10-9m). What is the frequency of the photons emitted by this beam in hertz?What percentage of the energy we use comes from the sun? 25% 50% More than 90% Less than 10%