When astronomers look at the spectrum of the Sun, they noticed that the light from one edge is slightly blue-shifted, while light from the opposite age is slightly red-shifted. What does this tell you about the Sun?

Q: How does the frequency of a particular spectral line observed in sunlight compare with the frequency…

A:

Q: Rank the following parts of the electromagnetic spectrum from lowest to highest energy. (IR =…

A: The order of the elwctromagnetic spectrem on the basis of wavelength is  Gamma rays< xrays<…

Q: A certain photon of light has a wavelength of 150 micrometers. What type of light is this?

A: A certain photon of light has a wavelength of 150 micrometers.   1 micrometer = 10-6 meter.

Q: During a nuclear explosion, the core of the explosion reaches temperatures of about 10,000,000 K.…

A: We know that  wiens law   λmax = b / T b = 2.897×10−3 m⋅K T = Absolute temp in  K λmax = peak wave…

Q: Infrared observations of a star show that the star is most intense at a wavelength of 280 nm. What…

A: Write the expression for Wien’s law. λmaxT=2.898×10-3 m·KT=2.898×10-3 m·Kλmax

Q: Say you observe a light source which you know emits light with a wavelength of 650nm, but when you…

A: Given The wavelength emitted by the light source is λ = 650 nm. The wavelength of the object is λo =…

Q: Suppose you are working with a photosensitive material that you know is sensitive to green light,…

A: Required : Which light is will damage the material.

Q: A blackbody radiator in the shape of a sphere has a surface area of 23m ^ 2 . If it has a…

A: Given that:A=23 m2T=3000 K

Q: In the spectrum of a blackbody, the wavelength of peak intensity (a) decreases as temperature…

A: According to Wiens law product of the wavelength of peak intensity and corresponding Temperature is…

Q: 24) Scorpions glow when illuminated with a black light because: Ultraviolet light is very purple,…

A: scorpions have a cuticle as a part of their exoskeleton, on which when the black light is…

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: An astronomer studying the light emitted by a star notices that the wavelength of the light is a…

A: According to the relativistic doppler effect, when an object is in relative motion with an observer…

Q: What is blackbody radiation?

A: Blackbody: A body which absorbs the radiations of all the wavelengths incident on it. It is called…

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: Determine the energy of a cosmic rays' photon, if its wavelength is 1.24 x 10-14m? (h = 6.63 x…

A: wavelength of photon (λ) = 1.24×10-14 m h = 6.63×10-34 Js

Q: Compared to wavelengths of visible light, the wavelengths of Ultraviolet light are

A: Shorter

Q: A distant star is traveling directly away from Earth with a speed of 49,500 km/s. By what factor are…

A: The factor that caused the wavelength in the star's spectra to shift must be identified.

Q: Can you give examples for blackbodies? Is the sun a blackbody? Is the moon a blackbody? Is the LED a…

A: BLACK BODY; Definition A black body is a  type of a body ore we can say a type of a surface that can…

Q: Which of the following statements are TRUE about the Sun's spectrum, which is shown in this image?

A:

Q: What is the actual Nature of Light? Is it an electromagnetic wave? Is it a stream of particles…

A: Light is a transverse, electromagnetic wave that can be seen by the typical human. The wave nature…

Q: Here is the emission spectrum for a hydrogen atom. To the best of your knowledge, how do you think

A: Total answers posted by the expert is: 3759    A sample of hydrogen gas is taken in a tube and…

Q: A blue-hot star is about twice as hot as a red-hot star. But the temperatures of the gases in…

A:

Q: Is light emitted from the surface of a massive star red-shifted or blue-shifted by gravity?

A: red shift or blue shift

Q: follow are the major categories of light (depending on your profession many of these can be divided…

A: Electromagnetic spectrum in simple terms is defined as the range of all types of electromagnetic…

Q: Why do lines in the emission and absorption spectra appear at the same wavelength?

A: An atom absorbs light energy and uses this imbided energy to excite its outermost electrons to…

Q: Why does a body emit radiations of all wavelengths and not for a particular wavelength?

A: Wavelength – When we consider a point on a single wave, then the measurement of the distance between…

Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.