at what wavelength (in nm) will it radiate the most energy? Is this a cool or hot star?
Q: Suppose a certain star has a temperature of 10,000 Kelvins (K). It will emit light of many different…
A:
Q: Problem 3: Two stars, M and N, from the same galaxy (at the same distance from earth) are observed…
A: The both stars emit same amount of energy per unit time. Luminosity is given as L=4πR2σT4, where R…
Q: A star has a surface temperature of T = 10,000 K and a radius three times that of the Sun, R = 3R…
A:
Q: Hertzsprung-Russell Diagram Blue or blue white White Yellow Red orange Red Superglants beleignne…
A: In this problem, it is asking about the brightest star.
Q: Hertzsprung-Russell Diagram Blue or blue White Vellow Red-orange Red Rigel Beteignuse Aldebaran…
A: As it can be seen from Hertzsprung-Russell diagram that the y axis represents brightness which…
Q: A star is known to be moving at 7.87km/s toward the earth. If you observe the spectral line to be at…
A:
Q: If a star has a surface temperature 2 times lower than the Sun's and a luminosity the same as the…
A: Given, If To is the surface temperature of the sun, Lo is the luminosity of the sun Then for the…
Q: If a star has a radius 2 times larger than the Sun's and a luminosity 1/4th that of the Sun, how…
A: Given that Radius of star, R = 2 luminosity of the star ,
Q: Why is the sun orange?
A:
Q: If one star has a temperature of 5,000 K and another star has a temperature of 8,500 , how much more…
A:
Q: A He-Ne laser with wavelength 632.8 nm is fired from a great distance toward a neutron star with…
A: As per the general theory of relativity, gravity affects light and causes energy change in photons.…
Q: What is therate of thermal radiation emittedfrom a star witha radius of 2.310x 109mand a surface…
A:
Q: Two stars of the same diameter or observed to have surface temperatures of 4000 Kelvin and 16,000…
A:
Q: Hertzsprung-Russell Diagram Blue or blue w White Vellow Red orange Red Rioe Supergl Beteigeuse Main…
A: The region of main sequence contains large number of stars than any other region. Therefore most of…
Q: Two stars (a and b) in a binary system have apparent V-band magnitudes of 8.0 and 8.4 mag, and B-V…
A: (a) The star with the smaller apparent magnitude in the V-band (i.e., the brighter star) is star A…
Q: What is the rate of thermal radiation emitted from a star with a radius of 4.11 x 109 m and a…
A: A blackbody is considered as an ideal physical body which will absorb and emit all the radiations…
Q: Suppose the distribution of light from a star is observed to have maximum intensity at wavelength =…
A:
Q: If a star has a surface temperature 3 times higher than the Sun's and a luminosity 324 times larger…
A: Luminosity is defined as the radiant power emitted y a light-emitting object like a star. Stars…
Q: At the surface of the sun, the temperature is approximately 5800 K. What fraction of the energy is…
A: (a) The total energy U of the electromagnetic radiation is given by following expression. Here, h…
Q: To find the Sun’s luminosity from its brightness using the inverse-square law, you also had to be…
A: The distance to the sun can be calculated using the method of parallax. Parallax is defined as the…
Q: Star A has an effective temperature of TA = 7200 K and a radius of RA = 2.04R , asecond star, Star…
A: Let LA be defined as the luminosity of star A and LB be defined as the luminosity of star B. The…
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: 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: Explain how hydrostatic equilibrium and the star's internal structure are linked.
A: It is to be explained that how the hydrostatic equilibrium and the star's internal structure are…
Q: How does the temperature of the peak (maximum) wavelength of 41 Cygni (at baseline level) compare…
A: Answer: The temperature of the peak (maximum) wavelength of 41 Cygni (at baseline level) by…
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: Two stars have the exact same luminosity, but star Y is four times dimmer looking that star X. This…
A: Basic Details Two stars star X and star Y have same luminosity. The brightness of the star is…
Q: Mention a method to measure temperature of a star.
A: Temperature of the stars cannot be measured directly as they are very far.
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: At what wavelengths do stars of surface temperates 20 000 K, 10 000 K, and 3000 K have their peak…
A:
Q: Explain how we can determine the temperature of a star without going there.
A: Stars can be considered a blackbody. The energy released in the core of the star will be absorbed by…
Q: What measurements would you make (assuming you have the money, time, & equipment) to determine a…
A: In this question we have to answer what measurements we will make to determine the surface…
Q: Using Wien's law, what is the wavelength (in nanometers) of the peak of the spectrum of a star which…
A: Solution:-Given thatSurface Temperature (Ts)=2.9×104 K
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: In the laboratory, the Balmer alpha line has a wavelength of 656.3 nm. If the line in a star’s…
A: Rest wavelength of the first balmer line of hydrogen is 656.3 nm. Star spectrum appears the…
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: The figure below shows the spectra of two stars on the same scale (Star A = red line; Star B = green…
A: According to Hubble's law, velocity of recession of star from our earth is directly proportional to…
Q: As we read in the book, a star that appears to be 1 magnitude brighter will have approximately 2.5…
A:
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: As we read in the book, a star that appears to be 1 magnitude brighter will have approximately 2.5…
A: Required : Approximate ratio of the flux.
Q: What is the color of the stars shown on the diagram that have the lowest surface temperature? O red…
A: Required: Color of the stars,
If a star has a surface temperature of 18,000 K (1.80 ✕ 104 K), at what wavelength (in nm) will it radiate the most energy? Is this a cool or hot star? (Give your answer relative to the Sun.)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
