(a) The colour temperature can be determined from two magnitudes corresponding to two different wavelengths. Show that: 7000 K T.- (B-V)+0.47 The wavelengths ofthe B and V bands are 440 nm and 548 nm, respectively, and we assume that B V for stars of the spectral class A0, the colour temperature of which is about 15000 K°. (Take constant value - 0.73 and e-2.718).
Q: Do gaps emerge between photons when a star's light stretches out and weakens?
A: Do gaps emerge between photons when a star's light stretches out and weakens?
Q: Suppose you are observing a binary star with a telescope and are having difficulty resolving the two…
A:
Q: The speed of the material ejected in a supernova can be measured by using the Doppler shift of the…
A:
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 James Webb Space Telescope, the replacement for the Hubble Telescope, will have a diameter…
A: The Rayleigh criterion for the minimum minimum angular separation is θ = 1.22λ/D where λ is the…
Q: Select average representative temperatures for 1) the average Earth surface, 2) the Sun, 3) a…
A:
Q: What is the shortest wavelength present in the Paschen series of spectral lines?
A:
Q: If you were using a telescope to study a pair of binary stars, and the telescope had an angular…
A: In order to resolve two objects close to one another, the resolution power of the viewing object…
Q: the glowing gas cloud shown below contains mostly hydrogen excited to emit photons. What kind of…
A: The above figure is an example of emission nebula, which are formed as a result of the interaction…
Q: You observe an object’s spectrum and you find that it has a flat spectrum in lambda: its flux…
A: The formula for the frequency of a visible (electromagnetic) spectrum is:
Q: 1. Calculate the luminance of the two lights having 1000 lumen of each and have been placed 30 m…
A: Given that, Luminous flux of light = 1000 lumen Distance, r = 30 m (from an incandescent) We need to…
Q: Two wavelengths are used in Newton's ring experiment. Assume that the 9th bright ring of 511 nm…
A: Newton rings
Q: Can we get Lamb dip spectroscopy using ordinary (not laser) light sources? Why?
A: Yes,we can get Lamb dip Spectroscopy using ordinary light sources.
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 powerful telescope can observe an object down to about the 30th magnitude in the B-band. To what…
A: Given:- A powerful telescope can observe an object down to about the 30th magnitude in the B-band.…
Q: Why does the spectrum of most stars (including the Sun) show absorption lines in which light is…
A: Solution: Given: Why does the spectrum of most stars (including the Sun) show absorption lines in…
Q: B. Star has a magnitudes in visible and blue filters 2.5, 4 consequently, What is the flux ratio for…
A: Given: The magnitudes of the two filters are 2.5 and 4. Introduction: Measuring the brightness of…
Q: Given the figure, determine the Vernier caliper measurement. Express your answer in centimeter. The…
A: Data provided: Main scale reading (MSR) = 3.9 cm Least count (LC) = 0.05 mm = 0.005 cm Vernier…
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: 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: If the atmosphere were twice as thick as it currently is (extending farther into space), what effect…
A: If the atmosphere were twice as thick as it currently is ( extending farther into space ) , the sky…
Q: Is it possible for the first-order spectrum to overlap the second-order spectrum? Explain, assuming…
A: To determine: Is it possible for the first-order spectrum to overlap the second-order spectrum?…
Q: The Three primary colors of light are: ____ ____ ___ _____ ____ ___ 6. (7) How are…
A: White light consists of all possible light colors or wavelengths. This means by mixing a sufficient…
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: Question-2: KNOWN: Various surface temperatures Hot Cool Surface Sun Tungsten (2500K) metal Skin…
A: We will use Wein's displacement law to determine the wavelength corresponding to the maximum…
Q: Imagine a photon that was determined to have a wavelength of 600 nm. Remembering that the speed of…
A:
Q: The James Webb Space Telescope has a primary mirror of diameter D = 6.5 metres. When observing at…
A: Wavelength: λ = 1100 nm = 1.1 × 10-6 m Primary mirror of diameter: D = 6.5 m 1arcsec = 136000,…
Q: When white light travels through glass, the phase velocity of each wavelength depends on the…
A: The phase velocity of a monochromatic wave of a particular wavelength λ is expressed as,
Q: A remote-sensing payload operates in the infrared part of the spectrum (lambda = 1 micrometer). If…
A:
Q: In the graph below, the yellow region shows the AM 1.5 solar spectrum. The area indicated by the…
A: (a) Given: When λ=250 nm and 1000 nm, Pλ=1×109 Wm-2m-1. When λ=1000 nm and 2000 nm, Pλ=0.25×109…
Q: weaker
A:
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: a) To which object corresponds this spectrum to? b) What is the source of radiation for…
A: a) The following spectrum corresponds to a planet as it shows the continuous spectrum of visible…
Q: Imagine a photon that was determined to have a wavelength of 150 nm. Remembering that the speed of…
A:
Q: A star's light is exoting the atoms in a gas cloud close to the star. If we view only the gas cloud…
A: Atomic structure.
Q: A tungesten filament is heated to 3000.0 ∘∘C. Calculate the wavelength for which the emission…
A: According to Weins Displacement Law Wavelength*Absolute Temperature=Constant where constant…
Q: Demonstrate (with a formula) in the refraction time of the "n" layer refraction wave is faster than…
A: In this question we are have to demonstrate that the refraction time of the "n" layer refraction…
Q: 1. Spectral signatures can be described using luminosity values in different spectral regions. UV…
A: Yes, it is possible to separate the different categories based on the values in given table because…
Q: A spectrograph is used to measure radial velocities. The spectral dispersion is 0.1 Å/pixel. The…
A: Spectrograph is an instrument which differentiate the light incident by wavelength or frequency and…
Q: The wavelength and equivalent width of agiven Pectral line ене 493 nm and 0.052nm. @ Calculate the…
A:
Q: Suppose you're experimenting with the spectrum produced by heated hydrogen gas. If you double the…
A: In this scenario, when you double the quantity of hydrogen and examine the resulting spectral lines,…
Step by step
Solved in 4 steps