Luminosity (J/s). A B Adapt Question: Luminosity, Temp C Wavelength → D highest The graph at left shows blackbody curves for stars wit different surface temperatures. Which of the stars has the highest surface temperature? Show Answ

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Q: Find the speed for a star in which this line appears at wavelength 121.8 nmnm. Express your answer…

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A: A bright blue star is moving away from Earth. Answer option A Absorption ,Red shifted

Q: Brightness of a Star The luminosity of a star is L = 2.5 x 106 W, and its distance from the earth is…

A: The relationship between brightness, B, luminosity, L, and distance, d, is given as, B=L4πd2

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: Choose the correct statements concerning the elec- tromagnetic spectrum given off by stars. (Give…

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Q: Complete the following chart by using Wien's law for blackbodies. You may use a calculator and the…

A: Given:Temperatures of stars in KelvinTo find:λmax and EM region of stars using the temperatures…

Q: The energy-level diagram for the atomic emission spectra of an unknown gas is presented in the…

A: Given Data: Four energy levels with energies :n = 1 = 0 eV.n = 2 = 2 eV.n = 3 = 2.4 eV.n = 4 = 4.2…

Q: Explain TWO of the applications using correct terminology and connecting it to concepts in this…

A: 1. When so bubble is exposed to white light , a phenomena of interference occurs as a result we see…

Q: a) (Palen, et. al., 2nd, Problem 45) Rigel has a Hipparcos parallax of 0.00412 arcsec. Given Rigel…

A: Rigel and Betelgeuse are located in the constellation of Orion, which are about 864.3 and 642.5…

Q: . Imagine a giant sphere with a radius of 1 AU surrounding the Sun. What is the surface area of this…

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Q: A. Based on the graph, what is the approximate mean luminosity of a Cepheid variable star with a…

A: From the above graph, we have to mention the approximate luminosity, in solar units, of a Cepheid…

Q: d. Find an expression for the velocity of the electron at each energy level. Calculate the velocity…

A: Let an atom has Z number of protons in it's nucleus and one electron is revolving in nth orbit .

Q: spectrum of this star, the H alpha line is observed to have a wavelength of 656.034 nm when measured…

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Q: Part D By how much? ΑΣΦ LM=-2 100000000 %3D LM=8 Submit Previous Answers Request Answer

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Q: What kind of spectrum is shown below?     a. black hole spectrum   b. continuous spectrum   c.…

A: absorption line spectrum:   an electromagnetic spectrum in which a decrease in intensity of…

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A: Answer : - option D is correct. Explanation It is absorption because it is continuous spectrum,…

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A: a) HR diagram is,

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Q: What do we observe in the spectral lines of stars as they become hotter and hotter? Select one: OA.…

A: We have to choose the correct option regarding spectral line of stars as it grows hotter

Q: Match each characteristic below to the appropriate stellar end state. (Select W-White dwarf,…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A star has a surface area of 6.92*1018 m2 . How much power does it radiate if it has a surface…

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Q: Choose the statements that correctly describe the characteristics of the stars located in the…

A: Option-E is the correct option.

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A: Given:  Field of view is square size with 0.06o on the side.

Q: ive an example of a wavelength to distance ratio (λ/d) and describe its origin, meaning, and…

A: To give an example of a wavelength to distance ratio (λ/d)

Q: The table below states the temperature for each blackbody. Rank the blackbodies from longest peak…

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Q: Calculate the value for the KB x-ray wavelength for molybdenum (Z=42) in meters. Moseley's law is in…

A: We will find the answer by substituting the given values in the Moseley's law. The steps are as…

Q: Calculate the wavelength of a photon having an energy of 5.89 x 10^11 J of energy. E = hc/λ

A: SOlution: given that E =5.89 x 10^11 J to calculate the wavelenght of the photon

Q: Astronomers use two basis properties of stars to classify them. These two properties are luminosity…

A: Introduction: The Hertzsprung–Russell diagram is a scatter plot of stars showing the relationship…