How does an absorption spectrum differ in appearance from an emission spectrum?

Q: Calculate the radiance of a 4,456-K blackbody at a wavelength

A: Given data: Temperature, T=4456 K Wavelength, λ=632 nm=632×10-9m Known data: Planck's constant,…

Q: Distinguish between radiative- and non-radiative transitions and give an example of  each.

A: radiative transition :-  Radiative transitions involve the absorption of a photon, if the transition…

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: What is Emission spectrum and absorption spectrum?

A: Emission spectrum: When energy is absorbed by electrons of an atom, electrons move from lower energy…

Q: What does it mean if it is stated that an object radiates blackbody radiation?

A: If an object is absorbing all the radiation falling on it then body is known as blackbody.

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: 5.3 The surface temperature of the Sun is 5800 K about and measurements of the Sun's spectral…

A:

Q: A beam of white light has the same intensity at all visible-light wavelengths. Does the beam contain…

A: The expression for intensity (I) of photon is given as: I=NhcAλ Here, N is the number of photons, λ…

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: Define the term continuous spectrum?

A: When white light from any source is analyzed  by passing it through a prism. It observed that it…

Q: Narrow line spectra are emitted by

A: To discuss narrow line spectra are emitted by which kind of atom.

Q: You are measuring the energy of photon corresponding to the colors seen in the spectrum below. You…

A:

Q: Green light is emitted when electrons in a substance make a particular energy-level transition. If…

A: The frequency of blue light is higher than the frequency of green light.

Q: An incandescent light bulb and thin gas cloud are in space. From which point of view would an…

A:

Q: A star has the peak of its blackbody spectrum occur at a wavelength of 284 nm. What is its…

A: As the wavelength of the peak is slightly less than the wavelength of blue light so this star will…

Q: The hydra constellation in a distant sky island is moving away from Earth at a velocity of 6.12 ×…

A: Please see the answer in Step 2

Q: Sunlight exhibits what type of spectrum?

A: A spectrum exhibited by the sunlight is the visible spectrum.

Q: In an absorption line spectrum, what do the spectral widths of the lines tell us?

A: In an absorption spectrum, the spectral widths not only determines the element but also different…

Q: Describe what happens to the blackbody spectrum as you increase or decrease the temperature. What…

A: Blackbody radiation refers to the spectrum of light emitted by any heated object; common examples…

Q: How does the lifetime of a typical CFL compare with that of an incandescent bulb?

A: The compact fluorescent lamps are more efficient than incandescent lamps. They put about four times…

Q: Which color light is the result of a greater energy transition, red or blue?

A:

Q: Describe in terms of their properties why they are all members of this spectrum and explain why they…

A: Electromagnetic waves consist of oscillating electric and magnetic fields which are perpendicular to…

Q: Why was helium discovered in the sun’s spectrum before being observed on Earth? Why was hydrogen…

A: The spectrum from the sun was observed to have a bright yellow line in it and this line was earlier…

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

A:

Q: A very bright source of red light has much more energy than a dim source of blue light, but the red…

A: Red light and blue light

Q: Elements at the Sun's surface are revealed in the solar spectrum. Are the lines in the spectrum…

A: Elements of the Sun’s surface are revealed in the solar spectrum.

Q: How is the energy of a photon related to its vibrational frequency?

A: The energy of a photon is given by

Q: Which of the following is a feature of blackbody emission spectra? A. The spectrum is discrete B.…

A: Black body emission spectra is a continuous and observed in ultaviolet, visible and infrared region.…

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: Determine the photometric balance point of a 30cd and 80cd light source in a photometer. If they are…

A: Given data: The luminous intensity of the first light source, I1=30 cd. The luminous intensity of…

Q: Distinguish between monochromatic light and sunlight.

A: Monochromatic light refers to light waves of same wavelength.

Q: When astronomers look at the spectrum of the Sun, they noticed that the light from one edge is…

A:

Q: How would a spectrum help you learn what the atmosphere of Venus is made of?

A: The electromagnetic spectrum corresponding to each atoms and molecules are different. The absorption…

Q: Wavelength is measured in what units?

A: Wavelength is a term that is used to define the distance between the reference point on an adjacent…

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.