B. Star has a magnitudes in visible and blue filters 2.5, 4 consequently, What is the flux ratio for the star wo filters and Find the temperature of the star?
Q: What is a light year? unit of time. unit of length 1 year on earth speed of light
A: A light year is the distance covered by the light beam in one year.
Q: If two stars have a magnitude difference of 8.6 what will be its intensity ratio?
A: When studying stars astronomers use two different magnitudes, apparent and absolute magnitude.…
Q: A spectrograph can be used to: O determine the chemical compositions of stars O break light from an…
A: Spectrograph can be used to break line from an object into colours
Q: object. Apparent magnitude is how Y8ur eye. Generally, the brighter the object, the closed it is to…
A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: Differentiate between emission spectra and absorption spectra. Write five-five points of each…
A: Emission SpectraAbsorption SpectraProduced when atoms release energyProduced when atoms absorb…
Q: the degeneracy of this level? 3. An electron moves in an infinite cubic potential well of side a =…
A:
Q: If the wavelength of the sun's ray is 0.5 micro meter (um), find its frequency. Take the speed of…
A:
Q: manner.) What is the potential at the center of aring with uniform charge distribution X and radius…
A:
Q: 1-What wavelength (in nanometers) is the peak intensity of the light coming from a star whose…
A:
Q: O Question 9 Look at the three spectra of stars in the picture above. The top one, for instance, is…
A: When the spectra of stars is brighter on red end it is relatively at higher temperature where as…
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 helium flash a. Is sudden and powerful. b. destroys the star. c. is a slow expulsion of helium…
A: A helium flash is a rapid explosive burning of helium gas in the deep core of low mass stars and the…
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: If the Sun's distance were three times its current distance, the "surface brightness" (apparent…
A: Distance is increased by 3 times That means r= 3R R is the initial distance
Q: Which object is hotter? Object 1 at T = 30° Object 2 at T = 30° Object 3 at T = 30
A: Given: Object 1 at T1 = 30 ̊C Object 2 at T2 = 30 ̊ F Object 3 at T3 = 30 K
Q: Which two spectral types were added to the spectral sequence after 1998? a. O and B b. Kand M c.…
A: Required : Which spectral types were added after 1998
Q: How fast must you be approaching a red traffic light with wavelength of 675nm for it to appear…
A:
Q: If the wavelength of the sun's ray is 0.5 micro meter (um), find its frequency. Take the speed of…
A: Given, the wavelength of sunray is 0.5 micrometer sped of light is 3x 10^8 m/s let frequency is f Hz
Q: Doppler broadening of spectral lines. Given that K= (1+vx/c), then Arms is: O a. b. KT/mc
A: Given that λ=λo(1+VxC). Then to find λrms is given below.
Q: The Sun appears to be red as it sets because: 1. Air absorbs red light less than other frequencies…
A: Sun colour is comprises of seven colors. They are calles as VIBGYOR. V stands for violet. I stands…
Q: A group of four stars, all the same size, have the four different surface temperatures given below.…
A: Temperature of star
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: Answer in 3-5 sentences. 1. Relate the frequency of peak spectral power density of stars to their…
A: One is the temperature,and the other are the cosmoogical redshift and the doppler effect. When the…
Q: Q / which type of spectral line broadening is less important compared to other type
A: The problem is based on spectral lines. A spectral line is a dark or bright line in an otherwise…
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: Define how to determine the velocity v of P waves in various layers and the thicknesses of those…
A: Ans:- Image-1
Q: What is the wavelength of light if it's frequency is 1.00 s-1?
A:
Q: B8
A:
Q: A star has a surface area of 6.92x1018 m2. How much power does it radiate if it has a surface…
A: (given) Surface area (A) of star = 6.92 x 1018 m2 Surface temperature (T) = 6,017 K σ is the…
Q: What are the different models of light ?explain
A: In the field of optics, there are three main models used to describe the nature of light: the wave…
Q: If the intensity of the Sun peaks in the optical range, at a frequency of about 3:4 x 10 Hz, what is…
A: Solution:- Given that, The Wien displacement law states that the wavelength at which maximum…
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: 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: What is a graybody? How does it differ from a blackbody? What is a diffuse gray surface?
A: A grey body is an object that emits radiation at each wavelength in a constant ratio less than unity…
Q: A star has a surface area of 6.11x1018 m2. How much power does it radiate if it has a surface…
A: Given data: Surface Area (A) = 6.11×1018 m2 Temperature (T) = 6,682 K Required: Power radiated by…
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: Taverage 288 degrees kelvin_ Source_ase.tufts.edu Q12 Estimate max jatensity, based on Earth's…
A: Given data: Average temperature of the earth's surface is T= 288 degree Kelvin Formula used:…
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: 1. Which colors in the visible spectrum have the least energy? the most energ oto
A: As per the guidelines first question is solved. Kindly post other as a new question. 1. The…
Step by step
Solved in 2 steps