The peak intensity of the CMBR occurs at a wavelength of 1.1 mm. What is the energy in eV of a 1.1-mm photon?

Q: What is the momentum of a λ=0.014nm X ray Photon ?

A: λ = 0.014 nm

Q: Calculate the energy, in electron volts, of a photon whose frequency is (a) 620 THz (b) 3.10 GHz (c)…

A: Given : frequencies are ν1= 620 THz =  620 × 1012 Hz                                     ν2 = 3.10…

Q: What is the photon energy for yellow light from a highway sodium lamp at a wavelength of 589 nm?

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Q: Calculate the wavelength (in nm) for a photon with a frequency of 3.70e+15 Hz.?

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Q: What is the wavelength of a proton traveling at a speed of 8.31 km/s?

A: The velocity of the proton,

Q: Calculate the energy, in electron volts, of a photon whose frequency is the following. (a) 560 THz…

A: The Planck's equation is E = h * c / λ = h * f, where E is the energy of a photon h is the Planck…

Q: What (a) frequency, (b) photon energy, and (c) photon momentum magnitude (in keV/c) are associated…

A: Wavelength * frequency = speed of light  frequency = speed of light / wavelength Energy = Planck's…

Q: Gamma rays are photons with very high energy. How many visible-light photons with a wavelength of…

A: The wavelength =500nm  To find the visible light of photons

Q: What is the energy of a neutron having wavelength 300nm?

A: (given)         Wavelength λ = 300 n m = 300×10-9 m Mass m of neutron = 1.675 ×10-27 kg Energy of…

Q: What is the energy in joules and eV of a photon in a radio wave from an AM station that has a…

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Q: 1. Rank these photons in terms of decreasing energy: (a) IR (v = 6.5 x 1013 s'); (b) microwave (v =…

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Q: How much energy does a photon of yellow light have if it’s wavelength is 600nm?

A: Energy of a photon = hν E = hc/λ given, λ = 600 nm

Q: What is the minimum wavelength in m of the x-ray photons from a 140 kV x-ray tube? (h =…

A: Given: The accelerating potential is V = 140 kV The Planck constant h = 6.63x10-34J·s The value of 1…

Q: (a) Find the momentum (in kg - m/s) of a 80.3 keV x-ray photon. kg - m/s (b) Find the equivalent…

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Q: What is the energy of a photon that has the same wavelength as a 12-eV electron? (Ans. 3.5 keV)

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Q: Calculate the frequency in hertz of a 1.00-MeV γ -ray photon.

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Q: What is the energy in cm¯! of a photon of 500 nm energy that may be observed in electron (UV-VIS)…

A: Given: (a)  wavelength in UV-VIS region, λ=500 nm (b) wavelength of photon in IR region, λ=6 micron…

Q: What is the frequency f of a 2.33×10−19 J photon? f = ? Hz What is the wavelength  of a 2.33×10−19…

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Q: The most energetic electromagnetic waves in the universe are gamma-rays from gamma ray bursts (GRBs)…

A: Given dataEnergy E=100 Tev1 Tev=1.6x10-7 JEnergy of photon is given byE=hfE=hCλwhere h=plank's…

Q: The human eye can respond to as little as 10-18 J of light energy. For a wavelength at the peak of…

A: The equation for the energy of a single photon is given by,

Q: What is the energy in joules of a photon in a radio wave from an AM station that has a 1530-kHz…

A: The energy of a Photon is directly proportional to its frequency where h  is a constant, known as…

Q: What is the wavelength of a radio photon from an ”AM” radio station that broadcasts at 1260…

A: Given,Frequency, f = 1260 kHzSpeed of light, c = 3x108 m/s

Q: ency in Hz of a photon with energy 2

A: GivenEnergy of photon, Ep=28 keV

Q: A helium–neon laser emits red light at wavelength l=633 nm in a beam of diameter 3.5 mm and at an…

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Q: If the wavelength of a photon is 714 nm, a) what is the frequency? 4201624 Hz b) What is the energy?…

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Q: A certain X-ray photon has energy of 6.2 keV. Calculate its frequency. [Take h = 6.63 x 10 - 34 Js;…

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Q: what is the energy in Jules and EV of a photon in a radio wave from an a.m. station that has a 1530…

A: Energy of photon is given by  E=hf Where h is planks constant and f is frequency.

Q: Three light sources are shone onto a plant: i) ii) 320 nm at an intensity of 200 umol photons.ms 440…

A: We have been given 3 light sources of wavelength 320 nm, 440nm and 675 nm having intensity 200, 300…

Q: To “see” such an orbiting electron by using a light microscope to measure the electron’s presumed…

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Q: frequency

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Q: A laser emits light at a wavelength of 678 nm. How many photons are required to emit 1 joule of…

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Q: What is the energy (in eV) of the following photons? A 200-nm photon of ultraviolet light?

A: Given data: For a ultraviolet light, Photon's wavelength, λ=200 nm=2×10-7 m          (∵1 nm=10-9 m)…

Q: If you know that the Debye temperature of silver is 215 K, then the maximum frequency of the phonons…

A: Solution: Given data Debye temperature of silver (D)=215 K We know maximum frequency, f= (D×k )/h,…

Q: A typical x-ray has a frequency of 3x10*17 Hz. What is the wavelength?

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Q: Things around you are emitting infrared radiation that includes the wavelength 1.04 10-5 m. What is…

A: Things around us emit infrared radiation. Its wavelength is in range of 700 nm -1 nm generally. They…

Q: What (a) frequency, (b) photon energy, and (c) photon momentum magnitude (in keV/c) are associated…

A: a) To determine the frequency,

Q: What is the wavelength (in m) of a 2.06 eV photon? Find its frequency in hertz.

A: Given data: Energy of photon (E) = 2.06 eV Required: The wavelength and frequency of the photon

Q: What is the wavelength associated with a 250g cricket ball moving at 100 km/h?

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Q: Calculate the energy of a photon of wavelength 6600 A.

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Q: Consider a fission nuclear explosion producing a temperature of 24 million K (25∗107 K). a) What is…

A: The answer to the given question can be solved by using the concept of Wiens's displacement law.…

Q: An electron and a photon each have a wavelength of 0.20 nm.What is the momentum (in kg m/s) of the…

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Blackbody

Q.5 A blackbody radiates how much energy when the temperature of the body is elevated?