Express the energy density of a Black body radiation in this formula in term of the wavelength
Q: The surface of a stainless steel is illuminated with light of wavelength 500 nm. The work function…
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Q: An X-ray photon is produced by braking, losing kinetic energy when braking. Find the initial kinetic…
A: Required : Minimum wavelength of the x-ray.
Q: Assume we have a material with a work function of 4.94 eV. What is the maximum speed, in meters per…
A: Given Work function of the material is ϕ=4.94 eV=4.94×1.6×10-16 J=7.90×10-19 J Wavelength of the…
Q: what is the maximum frequency, in hertz, of these photons?
A: Since maximum energy , Emax = 22000 eV Emax = 22000×1.6×10-19 J Emax = 35200×10-19 J = 3.5×10-15 J…
Q: X-rays are Compton scattered at an angle of 60◦. If the wavelength of the scattered radiation is…
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Q: The cut-off wavelength for the photoelectric effect in a certain metal is 220 nm. If the wavelength…
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Q: certain metal has a work function 2.28 eV. What is the longest wavelength of light (in nm) that can…
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Q: Aluminum metal has a threshold to wavelength frequency corresponding A 4770 Å. Calculate the…
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Q: The photoelectric threshold wavelength of a tungsten surface is 272nm. Calculate the maximum kinetic…
A: Given:frequency, f = 1.45×1015 Hzwavelength,λ0 = 272 nmSolution:We know that, the eqaution for work…
Q: 140-keV gamma ray has a photoelectric interaction with a K-shell electron of lead (Eß=88 keV). What…
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Q: 4. Find the positron scattering angle, if the incident photon has frequency 3x 1022 Hz where: h =…
A: solution of Question 4.Given frequency n = 3 x 1022 Hzh = 6.62 x 10-34 joule secondm0 = 9.11 x…
Q: clean Nickel surface is exposed to light of wavelength 235 nm. What is the maximum speed of the…
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Q: What is the kinetic energy of photoelectron (in terms of keV) ejected from K-shell of a lead (E;=82x…
A: According to Einstein photoelectric equation Kinetic energy of photoelectric = energy of photon -…
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- Ultraviolet radiation of wavelength 121 nm is used to irradiate a sample of potassium metal. The work function of potassium is 2.25 eV. Calculate the speed of the electrons emitted through the photoelectric effect.A 6.0-gram champagne cork is shot out of an opened champagne bottle and traveled at a speed of 65 km/hour. Calculate the de Broglie wavelength (in meters) of the cork.Monochromatic light falls on a photoelectric surface that has a work function of 2.8 eV. If the voltage required to stop the ejected electron is 0.11 V, what is the wavelength of the incident radiation?
- Calculate the energy associated with a photon of wavelength 4500 A .What is the wavelength of an electron moving at 1.5 %of the speed of light? Use nonrelativistic calculations.UV radiation having a wavelength of 146 nm falls on gold metal, to which electrons are bound by 4.82 eV. What is the maximum velocity of the ejected photoelectrons? No need to use relativistic formulas in this case.
- When radiation of frequency 8 × 10¹ Hz is incident on a metal, the maximum K.E. of the photoelectrons emitted is 1.5 × 10-¹⁹ J. Find the maximum K.E. of the photoelectrons 19 emitted when radiation of wavelength 4500 A is incident on the metal. (h and C are given)The “work function” of the metal lithium is4.6x10-19 J. If irradiated with light of frequency9.5x1014 Hz, what is: a) the max.KE of the photoelectrons ejected?Need Quick response.
- A metal surface is illuminated with light of different wavelengths and the corresponding stopping potentials of the photoelectrons are shown in the Table below. A (A) 5581 61566731 V (V)1,05 0,86 0,67 Using the Table, determine the photoelectric threshold wavelength (in Å).The figure below shows how the frequency f of incident radiation on a metal surface varies with the energy Emax of the emitted photoelectrons. From the graph, determine the threshold frequency and calculate the maximum wavelength of the emitted electrons.