A 2.0-mW green laser ( λ = 532 nm) shines on a cesium photocathode (Φ =1.95 eV). Assume an efficiency of 10-5 for producing photoelectrons (that is, one photoelectron produced for every 105 incident photons) and determine the photoelectric current

Q: An argon laser emits a beam of light of wavelength 4.88 × 10-7 m, the power in the beam being 100mW.…

A: When an electromagnetic wave or light is incident on the metal surface, electrons contained in an…

Q: What is the maximum speed (in km/s) of a photoelectron emitted from a surface whose work function is…

A:

Q: The longest wavelength that can eject photoelectrons from platinum is 1950 A. Calculate its work…

A: Given : λo=1950 Ao=1950×10-10 m     =1950×10-7 m To Find: Wo = ?

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

Q: Photoelectric work function of a photo- sensitive material is 3 x 10-19 J. Calculate its threshold…

A: To find-Threshold wavelength (λ0)=?Given-W=3×10-19 J

Q: When monochromatic light of an unknown wavelength falls on a sample of silver, a minimum potential…

A: Given: The minimum potential of electrons is V=2.85 V. The work function for silver is W=4.73 eV.…

Q: Photoelectric work function of a photo- sensitive material is 3 × 10-¹9 J. Calculate its threshold…

A: Given: Photo electric work function, 3 ×10-19 J To find: Threshold wavelength

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: The photoelectric work function of tungsten is 4.5 eV. Calculate its threshold wavelength.

A: To find-Threshold wavelength (λ0)=?Given-W0=4.5 eV1 eV=1.6×10-19 J

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: Photoelectrons from a material with a binding energy of 2.71 eV are ejected by 420-nm photons. Once…

A:

Q: A metal surface is illuminated with light of different wavelengths and the corresponding stopping…

A: In the following question we have been provided varying stopping potential with field which will…

Q: Photoelectrons from a material whose work function is 2.27 eV are ejected by 502 nm photons. Once…

A: Given Data :Work Function of the material φ = 2.27 eVwavelength of incident photon λ =  502 nmmass…

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: In a photoelectric-effect experiment, the photocurrent i for large positive values of VAC has the…

A: Express the relation between frequency and the wavelength as: f=cλ Here, f is the frequency of the…

Q: Number of emitted photons is 10^4 photons/s. Number of emitted electrons is 20 el/s. What is…

A: Given data, Number of photons, Np=104 photons/sec Number of electrons Ne=20 e/sec

Q: The work function for lead is 4.14 eV. (a) Find the cutoff wavelength for lead. nm (b) What is the…

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Q: The stopping potential for photoelectrons emitted from a surface illuminated by light of…

A: a) Write the equation of the photoelectric effect and apply the first equation.

Q: The maximum wavelength of incident light that releases photoelectrons from the surface of a platinum…

A: Given:-  wavelength = 195 nm = 195 * 10-9 m. Formula :- Einstein equation is given as -eVs = hf -…

Q: The cut-off potential for photoelectrons emitted by a surface hit by wavelength light of 4910…

A: The cut off potential is the applied reverse potential such that the photocurrent is 0. From…

Q: The work function for platinum is 6.35 eV. (a) Convert the value of the work function from electron…

A: Step 1: All answers are correct except (c), means I am assuming all other questions are solved by…

Q: The “work function” of the metal lithium is 4.6x10-19 J. If irradiated with light of frequency…

A:

Q: Photoelectric work function of silver is 3.315 eV. Calculáte the threshold frequency of silver.

A: Given data ϕ0=3.315 eV Here, ϕ0 is the photoelectric work function. Now we have to find out the…

Q: In a photoelectric experiments, a graph of the light frequency f is plotted against the maximum…

A: It is required to calculate the wavelength and the velocity for the given frequency.

Q: A Ge pin photodiode has a radius of 0.2 mm for an active light receiving circular area. Light that…

A: The quantum efficiency of the photodiode is given by,

Q: The binding energy of Sodium is 2.28 eV. Calculate the number of photoelectrons ejected from a 1.00…

A: Let the wavelength of the electromagnetic radiation is denoted by λ. Evaluate the energy (E) of the…

Q: he work function of lithium is  W0 = 2.93 eV. (a) What is the maximum wavelength of incident light…

A:

Q: When monochromatic light of an unknown wavelength falls on a sample of silver, a minimum potential…

A: By the conservation of energy, the maximum kinetic energy is. The maximum kinetic energy is,

Q: Barium has a work function of 2.48 eV. Calculate the maximum speed of the ejected photoelectrons…

A:

Q: The photoelectric work function for a surface fis 24 eV. Light of wavelength 6800 A shines on the…

A: To find-(1) Incident frequency,(2) Threshold frequencyGiiven-W=2.4 eVλ=6800 A0λ=6800×10-10 m

Q: The work function of a material is found to be 4 eV. Electromagnetic radiation of frequency 6.8* 10…

A: Certain materials can eject electrons when the light of a certain frequency falls on their surface.…