Green light is emitted when electrons in a substance make a particular energy-level transition. If blue light were instead emitted from the same substance, would it correspond to a greater or lesser change of energy in the atom?

Q: As an object is heated, the peak in its thermal emission spectrum may shift out of the visible part…

A: According to Wien's displacement law λT=a constant

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: Give the fundamental equations that describe the link between a blackbody's temperature, wavelength,…

A: In physics,the blackbody is the surface which absorb all radiant frequency falling onto it.

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: 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: A distant star has a peak wavelength of 0.00000077. What is the temperature of that star?

A: The temperature of the star can be given by T=2.898×10-3mKλpeak

Q: The continuous-spectrum radiation that a blackbody emits is called A. Emitting light. B. Ultraviolet…

A:

Q: Which of the following statements is TRUE regarding the different colors of light in the spectrum? *…

A: Here the correct options are (c) and  (d). That is the statements  • Light with a higher frequency…

Q: Is it necessary that that every black coloured objects should be considered a blackbody?

A: A perfect black body is a body that absorbs all the radiation that falls on it.

Q: Calculate the energy of a photon of a green light (ʎ=0.52μm). (Convert the wavelength to nanometer…

A: Given that, wavelength of green light is λ=0.52 μm In nanometer, wavelength is λ=520 nm

Q: Which colours of light emitted from an atom is associated with the most and least change in energy

A: We know, Energy = Planck's constant * frequency

Q: Who was the first person to obtain the spectrum of sunlight?

A: In 1666, Sir Issac Newton performed prism experiment to obtain the spectrum of sunlight. In his…

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

A: Blackbody spectrum.

Q: If you see a “violet-hot” star, you can be certain its peak intensity is in the ultraviolet range.…

A: Objects start to glow red at about  . As they get hotter, they will appear orange, yellow, white and…

Q: If a star has a surface temperature of 9500K. What would be the frequency of the light given off at…

A: Write a given value of this question. T=9500K

Q: If a star is moving towards us, what color will it appear?

A: a star is coming toward earth. we have to predict its color. CONCEPT: as star is coming toward us…

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: What is the frequency of the EM wave emitted most strongly by a glowing element on a stove with…

A: According to Wein's law , the wavelength emitted most strongly at a particular temperature is given…

Q: Here on Earth we are constantly learning more about our world and universe by taking advantage of…

A: Ans:wavelength

Q: What is the energy of a photon with a frequency of 7.4*10^15 Hz?

A: Given data:  Frequency of photon (υ) = 7.4 × 1015 Hz Required: The energy of photon

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

A:

Q: X-ray radiation has wavelengths from 1.0×10-11 to 1.0×10-8 m, whereas the wavelength region for…

A: Given Wavelength of X-ray radiation = 1.0×10-11 to 1.0×10-8 m Wavelength of ultraviolet radiation =…

Q: For each light source, determine which part of the spectrum of visible light is predominant:…

A: For each light source, the part of the spectrum of visible light is predominant is as follows: These…

Q: A high-pressure gaseous object (e.g. the sun) will emit a consisting a wide range of wavelengths. *…

A: Given:  A high pressure gaseous object like sun A band of of waves which is in increasing or the…

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: A blackbody radiator (none of the choices) does not absorb thermal radiation. emits radiation only…

A: First option is correct.

Q: An ideal blackbody... A. Emits all wavelengths of radiation. B. Absorbs all wavelengths of…

A: We know : A. Blackbody emits Radiation of all wavelengths with different intensities and as the…

Q: What causes electrons in atoms to emit energy after absorbing it? becoming electromagnetic…

A: To explain : The reason due to which electrons in atoms emit energy after absorbing it

Q: The energy of a photon (hydrogen) emitted in a transition from the n = 3 to the n = 2 state is

A:

Q: If electrons are made to vibrate to and fro at a few hundred thousand hertz , radio waves are…

A: Since the frequency of the vibration of the electrons is a few hundred thousand hertz. The emission…

Q: A mercury vapour lamp emits in the green portion of electromagnetic spectrum at a wavelength of…

A: Given that Wavelength (λ)=546.1 nm bandwidth△ν =6×108 Hz Coherence length is given by L=c△tL=c△νWe…

Q: Find the power per unit area radiated from the sun’s surface in the wavelength range 600.0 to 605.0…

A: Here,  Wavelength range= 600nm- 605nm To find: Power radiated per unit area.

Q: In terms of light, red light is emitted when an electron: a. hits into the photon and is absorbed b.…

A: Light provides sensation to eyes so we see objects around. When light falls on an object, 3 things…

Q: An incandescent lightbulb is desired to emit at least 15 percent of its energy at wavelengths…

A: The wavelength range of the light is considered from 0.0 mm to 0.8 mm.   The given values are,

Q: If you pass sunlight through a spectroscope you will see a(n)______________spectrum which can tell…

A:

Q: Identify regions of the electromagnetic  spectrum that may be hard to classify as strictly…

A: EM waves which are able to transmit through a medium are classified as transparent  EM waves which…

Q: According to present theories of light, in some experiments light seems to be:

A: according to present theory of light .  light can behave like a particle as well as wave

Q: When ultraviolet light shines on glass, what does it do to electrons in the glass structure?

A: Ultraviolet light is the light having wavelength less than the violet color's wavelength. It has…

Q: If the average temperature of the surface of the Sun is roughly 5780 Kelvin, the radiation emitted…

A:

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

A:

Q: If the blue and orange light of a black body were blocked what colors would now be present in the…

A: blue and orange light of a black body were blocked

Q: How are frequency, wavelength and energy related for photons of light? Longer wavelength means lower…

A: let ϑ be the frequency λ be the wavelength c be the speed of photon E be the energy of the photon…

Q: What is the Light of wavelength 5 EXP-7 m consists of photons with an energy of (c=3 EXP 8 m/s)

A: Given Data, Wavelengthλ=5 EXP-7 m=5×10-7 m Speed of light (c)=3 EXP 8 m/s=3×108 m/s

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.