6. White dwarf stars have been observed with a surface temperature as hot as 2.00×105 °C. What is the wavelength of the maximum intensity produced by this star?

Q: Green light has a frequency of about 5.3Hz×1014Hz5.3Hz×1014Hz.   1. Using the relationship…

A: The relationship between speed, wavelength, and frequency of light is given by, c=λf......(1)where,…

Q: B2. A spherical star is detected by an astronaut in a spacecraft at a distance z of 1.5×10¹2…

A:

Q: If a luminous object were moved to one-half the original distance, it would appear   a. one-half as…

A: The final distance is half of the initial distance. df=di2

Q: 5. When heating a metal rod, it initially does not change colour but radiates heat. A continues, the…

A:

Q: Gamma-ray busters are objects in the universe that emit pulses of gamma rays with high energies. The…

A: Relation between wavelength and frequency is as follows λ=Cf where λ = wavelength of given rayC=…

Q: What is the Doppler broadening in the 21 cm line in an interstellar gas cloud (100 K) composed of…

A:

Q: 3. Consider two stars. Star A has a surface temperature of 12000 K. Star B has a surface temperature…

A: Given,TA=12000 KTB= 6000 KDA=2DB

Q: A tank contains water vapor, water droplets, and chemically inert helium gas. How many independent…

A: Gibbs phase rule gives the relationship between the number of phases and number of constituents in a…

Q: Imagine that you are observing a star and you find the wavelength of peak emission for the star to…

A: In this question we have to find the wavelength of peak emission. Please give positive feedback if…

Q: 1. Temperature of the Cosmic Microwave Background radiation (CMB) is T= 2.725 K. a) Assuming it has…

A: (a) as we know max. Wavelength of radiation given by wein displacement law  Lembda = b/ T where b is…

Q: Problem 4: If a star of surface temperature 5.2 x 10³ K, radiates a power of 3.0 x 1026 W, calculate…

A: Given data:  Surface temperature (T) = 5.2×103 K Power (P) = 3.0×1026 W Emissivity (e) = 1 Required:…

Q: 1. When you see an object, you're either seeing the light it made/created by itself, or the light…

A: (a) The bodies which have their own source of energy to emit light are called luminous bodies. (b)…

Q: A star has a surface area of 6.99x1018 m2. How much power does it radiate if it has a surface…

A: Given: Surface area of star, A= 6.99 x 1018 m2 Surface temperature, T=5274 K   To determine power…

Q: A particular star has a surface temperature of 30,000K. Determine Amax, the wavelength at the peak…

A: Given: The surface temperature of the particular star is, T = 30,000 K To Find : The maximum…

Q: (A) Every square meter area facing the Sun, at the distance 1 AU from the Sun, receives radiant…

A: A) Given that:Prec=1.368 kW=1.368×103 WA=1 m2

Q: 2. Which of the following describes absolute zero? It is the temperature needed to create liquid…

A: Here, we will check each option one by one to find the correct answer -  Option(1) - This option is…

Q: Define how to determine the velocity v of P waves in various layers and the thicknesses of those…

A: Ans:- Image-1

Q: For the point light source of light, what is the irradiance measured at 1m and 2m from a 1W light…

A:

Q: collisions transfer energy

A: The year with the most auroras would be 2014, and the year with the least auroras would be 2020.

Q: 2.9) Explain how astronomers might use spectroscopy to determine the composition and temperature of…

A: Atoms consist of discrete energy states called quantum states. When a transition takes place from…

Q: The sun has a luminosity of 3.9 × 1026 W and an angular diameter of θ = 32 arc mins. Assume that the…

A:

Q: Three stars are moving away from the observer and their stellar spectra are shown below. 500 nm 600…

A: Given information: Spectrum of three Stars:

Q: A bright red star is moving towards Earth. Which of the choices best completes the following…

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

Q: Suppose YOUR body temperature averages 98.6 F. 1. How much radiant energy in Wm^-2 is emitted from…

A:

Q: The Sun appears to be yellow when overhead because: 1. The human eye is most sensitive to yellow. 2.…

A: The Sun appears to be yellow when overhead because the temperature of the Sun is 6000 K w2hen it is…

Q: How does the intensity of radiation emitted from a star vary with distance from the star? Explain.

A: The brightness of the star decreases as the distance from it increases. The apparent brightness of a…

Q: If a star gives off light at a peak wavelength of 6.80x10-7 m. What would be the temperature of this…

A: Given peak wavelength = 6.8×10-7m

Q: 3) How bright will Pluto appear in reflected or scattered sun-light (total Flux received in W/m² )…

A: The radius of pluto is .The radius of sun is .The albedo of Pluto is 0.60The surface temperature of…

Q: 6 Which of the following methods has led to the most discoveries of massive planet A B с D Detecting…

A: 16. Solution: The most successful method of detection of the planet is the radial velocity method…

Q: You are an astronomer and are searching for planets in other stellar systems for which conditions on…

A: Given:A candidate star name = Tycho1601Size of Tycho1601 = size of sunSurface temperature of…

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