: The work function of a metal is 4.3 eV. Find the K.E. and velocity of photoelectrons emitted when radiation of wavelength 2500 A is incident on it.
Q: Ex. 58: The threshold wavelength for a certain metal is 5000 ACalculate the maximum K.E. of the…
A: Given-λ0=5000 A0=5×10-7 mλ=2500 A0=2.5×10-7 mTo find-(K.E.)max=?
Q: 21. || What is the electric potential at the point indicated with the dot in Figure Figure P21.21…
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Q: What is the maximum kinetic energy (in eV) of the photoelectrons when light of wavelength 260.0 nm…
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Q: The work function for indium is 4.12 eV. (d) If light of energy 7.14 eV is incident on indium, what…
A: Photoelectric effect is the phenomenon of emission of electrons from metals under the influence of…
Q: What is the maximum wavelength of light that will cause photoelectrons to be emitted from sodium?…
A: Given, Work Function, W=2.28eV = 2.28×1.6×10-19J=3.648×10-19JSpeed of light,c=3×108m/sPlanck's…
Q: The work function for a certain metal is 4.2 eV. Will this metal give photoelectric emission for…
A: We have known that-Work function of the metal, ϕ0=4.2 eVCharge on an electron, e=1.6×10-19 CPlanck's…
Q: What must be the velocity, in meters per second, of a beam of electrons if they are to display a de…
A: Wavelength, λ = 29.1 μmVelocity, v = ?
Q: When ultraviolet light with a wavelength of 354 nm falls on a certain metal surface, the maximum…
A: Given: Ultraviolet light of wavelength λ=354 nm Kinetic energy of photoelectrons…
Q: Sodium has a working function of 2.46 eV. The working function of aluminum is 4.08 eV. What is the…
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Q: The work function for tungsten (W) is 4.52 eV. What is the cutoff frequency that can result in…
A: The total energy of the incident photon is consumed in the work function of the metal surface and…
Q: Radiation with a frequency of 7.52 × 1014 Hz illuminates a photoelectric surface in a photoelectric…
A: Frequency = 7.52 ×10¹⁴Hz Work function = 2.20 eV
Q: O Ex. 28: The current in the photo-electric cell can be just reduced to zero by a potential of 1.8…
A: To find-Work function of cathode (W)=?Given-V0=1.8 vote=1.6×10-19 Cλ=2200 A0λ=2.2×10-7 m
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: (a) Find the momentum (in kg · m/s) of a 44.5 kev x-ray photon. kg m/s (b) Find the equivalent…
A: Given data, Energy of photon = 44.5 KeV Rest mass of photon = 0 Rest mass of neutron = 1.6x10-27 kg
Q: Light that has a 196 nm wavelength strikes a metal surface and photoelectrons are produced moving as…
A: It is given that,
Q: Lead has a work function of 4.14 eV. Find the cutoff wavelength and cutoff frequency for the…
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Q: The work function of a surface is 5.0×10^−19 J. If light of wavelength of 300 nm is incident on the…
A: Given: The work function of the metal is 5x10-19 J. The wavelength of the light is 300 nm.
Q: The following data gives stopping potential Vo versus wavelength for photoelectrons produced from a…
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Q: Molybdenum has a work function of 4.20 eV. Find the cutoff wavelength for the photoelectric effect.
A: Certain metals release electrons from their surface when light falls on them. This process is called…
Q: Light of wavelength 400 nm bombards a surface with work function 2.46 eV. What is the maximum…
A: Given data :- Wavelength λ = 400 nm Work function W = 2.46 eV
Q: When light with a wavelength of 1.64E-7 m falls upon a clean metal surface, the stopping potential…
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Q: Light shines on a metal whichh has a work function of 2.0eV and electrons are emitted with…
A: Let the work function of the metal be W, the maximum velocity of the electrons be vmax, and the mass…
Q: If the workfunction of metal is 1,3 eV, find the potential difference needed to stop the fastest…
A: Wavelength of the incident light, λ=1671A∘. The work function of the metal is given by, ϕ=1.3 eV It…
Q: What is the wavelength (in m) of a 2.06 eV photon? Find its frequency in hertz.
A: Given that, Energy of photon, E = 2.06 eV We know that Planck constant, h = 6.626 × 10-34Js…
Q: A photon strikes a metal with a work function of o and produces a photoelectron with a de Broglie…
A: According to law of conservation of energy, the energy can neither be created nor be destroyed, it…
Q: n a photoelectric experiment, a metal with aφ=1.5 eV is used as a target. When a lamp operatingat…
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Q: : The longest wavelength of incident light that can eject photoelectrons from platinum is 1980 A. If…
A: Given: λo=1980Å=1980*10-10m λ=1900Å=1900*10-10m Additional data Planck's constant(h)=6.626 ×…
Q: A clean nickel surface is exposed to light of wavelength 230 nm. What is the maximum kinetic energy…
A: Given Information:- Wavelength of the incident light is λ=230 nm =230 nm×10-9 m1 nm =2.30×10-7…
Q: 5.00-eV photons are incident on a metal, generating photoelectrons that have a maximum kinetic…
A: Given data- Energy of photon E=5.00 eV maximum kinetic energy KEmax=0.69 eV Work function=W
Q: What is the maximum wavelength of light that will cause electrons to be emitted form a photoelectric…
A: The objective of the question is to find the maximum wavelength of light that will cause electrons…
Q: Ultraviolet radiation of wavelength 121 nm is used to irradiate a sample of potassium metal. The…
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Q: When a certain metal is illuminated by light, photoelectrons are observed, provided that the…
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Q: A metal with a work function of 1.7 eV is illuminated by visible light with the full range of…
A: This problem can be solved using Einstein's photoelectric effect.
Q: A metal having a work function of 3.5 eV is illuminated with white light that has a continuous…
A: Given: Work function = 3.5 eV Continuous wavelength band = 350 nm to 535 nm
Q: Barium has a work function of 2.48 eV. Calculate the maximum speed of the ejected photoelectrons…
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Q: Problem 4 (2): When light with a wavelength of 400 nm strikes a certain metal surface, the maximum…
A: From Photoelectric effect Total energy E = Kinetic energy + Work function Work function (ϕ) = E -…
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