Ex. 50: 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.
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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: The work function for aluminum is 4.08 eV. Ultraviolet light of wavelengt 156 nm is incident on the…
A: Given data:The work function, ϕ=4.08 eV.Wavelength of light, λ=156 nm
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A: Given-λ0=3800 A0=3.8×10-7 mλ=2600 A0=2.6×10-7 mc=3×108 m/sh=6.63×10-34 Js1 eV=1.6×10-19 J
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Q: Light of wavelength 400 nm is incident upon lithium. If the work function for Lithium is 2.3 eV,…
A: Given, wavelength= 400 nm Work function=2.3ev
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A: Given : λo=1950 Ao=1950×10-10 m =1950×10-7 m To Find: Wo = ?
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Q: The Photoelectric threshold wavelength A. Calculate its of certain material is 3000 A work function.
A: To find-Work function (W)=?Given-λ0=3000 A0=3000×10-10 mC=3×108 m/s
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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: 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: Photoelectric work function of metal is 3.2 eV. Find the threshold wavelength.
A: Given data: - The photoelectric work function of metal is Φ = 3.2 eV.
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A: the problem is based upon the concept of photoelectric method, at first we have to calculate the…
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: The graph below shows the maximum kinetic energy of emitted photoelectrons as a function of the…
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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: Aluminum metal has a threshold to wavelength frequency corresponding A 4770 Å. Calculate the…
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Q: 19. An electron (mass m) with initial velocity i = voi + voj is in an electric field É = -E,k.If do…
A: An electron (mass 𝑚) with initial velocity v→=v0i^+v0j^ is in an electric field E→=-E0k^ If λ0 is…
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A: Here light of wavelength 420 nm just begins to emit photoelectrons ,it means threshold wavelength of…
Q: The “work function” of the metal lithium is 4.6x10-19 J. If irradiated with light of frequency…
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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: : 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: Photoelectric work function of a metal is 3 eV. Find the maximum K.E. and maximum speed of…
A: To find-(1) maximum K.E.=?(2) Maximum speed of photoelectronsGiven-W0=3 eV=3×1.6×10-19 JW0=4.8×10-19…
Q: It is observed that light of 410 nm just begins to emit photoelectrons. What is the classical…
A: incident wavelength = 410 nm The metal surface just begins to emit the photoelectrons when a light…
Q: Ultraviolet light of wavelength 99 nm falls on a metal plate of work function 1.0 eV. Find the…
A:
Q: Aluminum metal has a threshold frequency corresponding to wavelength 4770 A. Calculate the…
A: To find-Work function in eV (W)=?Given-λ0=4770 A0=4.77×10-7 mh=6.63×10-34 J-s
Q: A 2.0-mW green laser ( λ = 532 nm) shines on a cesium photocathode (Φ =1.95 eV). Assume an…
A: Given: Wavelength, λ=532 nm=532×10-9 mϕ=1.95 eVAn efficiency of producing photoelectrons,…
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…
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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 has a work function of 4.14 eV. (a). Find the cutoff frequency for the photoelectric effect.…
A:
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 -…
![Ex. 50: The work function of a metal is 4.3 eV.
Find the K.E. and velocity of photoelectrons
O
emitted when radiation of wavelength 2500 A
is incident on it.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd5f58078-bf89-4a05-a73a-b2bf53c78583%2Fbb56ef35-0689-4180-8245-547e259aaa25%2F8as3gx8_processed.jpeg&w=3840&q=75)
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