Light of wavelength 5.6x10 10 m from a mercury arc falls upon a metallic photocathode, and the least potential difference applied between the anode and the photocathode to prevent photocurrent is 8.9 V. Calculate the photoelectric threshold for the metal in pm. Answer:

Light of wavelength 5.6x10 10 m from a mercury arc falls upon a metallic photocathode, and the least potential difference applied between the anode and the photocathode to prevent photocurrent is 8.9 V. Calculate the photoelectric threshold for the metal in pm. Answer:

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: Photoelectrons with a maximum kinetic energy of 3 eV are ejected from a metal surface by ultraviolet…

Q: A wavelength of 135 nm shines on a sample of unknown metal. A photocurrent is detected with a…

A: Stopping potential for a sample is the amount of energy required to stop an electron from ejecting…

Q: Light strikes a metal surface, causing photoelectric emission. The stopping potential for the…

A: Stopping potential of ejected electrons, Work function of the metal,

Q: Ex 27: The threshold wavelength for silver is O 3800 A. Calculate the photoelectric work function…

A: To find-Work function in eV (W)=?Given-λ0=3800 A0=3.8×10-7 mh=6.63×10-34 Jsc=3×108 m/s1 eV=1.6×10-19…

Q: In aphotoelectric effect experiment, light of frequencyl.15×105 Hz strikes a metal surface and…

A: Write a given values of this question. f=1.15×10-15Hz Work function. ϕ=2.3eV=2.3×1.9×10-19V

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: 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: Ex 27: The threshold wavelength for silver is O 3800 A. Calculate the photoelectric work function…

A: To find-Work function in eV (W)=?Given-λ0=3800 A0=3.8×10-7 mh=6.63×10-34 Jsc=3×108 m/s1 eV=1.6×10-19…

Q: Ex. 55: Photoelectric threshold wave-length of à certain metal is 3315 A.U. Then its work function…

A: To find-Work function (W0)=?Given-Threshold wavelength λ0=3315 A0…

Q: . i. Calculate the maximum wavelength λmax of electromagnetic radiation that could eject electrons…

Q: Question 2) In the photoelectric experiment, green light, with a wavelength of 522 nm, is the…

Q: Ex. 55: Photoelectric threshold wave-length of à certain metal is 3315 A.U. Then its work function…

A: The work function is-W0=hv0=hcλ0W0=6.63×10-34×3×1083315×10-10W0=2×3×10-19W0=6×10-19 J

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

Q: Light of wavelength 576 nm is incident on a target metal that has a work function of 1.85 eV. What…

A: solution is given by

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: When light with a wavelength of 1.64E-7 m falls upon a clean metal surface, the stopping potential…

Q: The wavelength of the photoelectric threshold for a metal is 1,13×10-10 m. Determine the wavelength…

Q: Photoelectrons from a metal with a work function of 2.74 eV are ejected by photons with a wavelength…

A: work function (w) = 2.74 eV wavelength of incident photons = 415 nm

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

Q: The work function for sodium is 2.46 eV. (a) Find the cutoff wavelength for sodium. nm (b) What is…

Q: The maximum kinetic energy of electrons ejected from a metal surface exposed to 301-nm photons is…

A: wavelength=301 nm stopping potential=2.98eV

Q: the cutoff wavelength for a particular material is 510nm considering the photoelectric effect, what…

A: L0=510 nmL=402 nm let kinetic energy be K formula for K=> K=hcL-hcL0

Q: If the cutoff frequency of the lead metal is 9000 THz and the emitted photoelectrons have kinetic…

A: cutoff frequency (f) of lead metal= 9000 THz

Q: Which statement regarding the photoelectric effect is FALSE? Electrons can be ejected with energy…

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: Light of wavelength 1,6x10 10 m from a mercury arc falls upon a metallic photocathode, and the least…

Q: A monochromatic light with a frequency of 6.77, 10^14 Hz falls on a sodium surface with a breaking…

A: Write the energy equation. Here, Vs represents the stopping potential, e represents the charge of…

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: The threshold wavelength for silver is O 3800 A. Calculate the maximum kinetic O. energy in eV of…

A: To find-Maximum K.E. in eVGiven data-λ0=3800 A0=3800×10-10 mλ=2600 A0=2600×10-10 mc=3×108…

Q: The electric field of light wave is given as 10° cos5×10-7 2т х6х 1014t COS 5x10-7 This light falls…

Q: Ultraviolet light of wavelength 99 nm falls on a metal plate of work function 1.0 eV. Find the…

Q: A photoelectric experiment with cesium yields stopping potentials of 0.95 V and 0.38 V for A = 435.8…

Q: The wavelength of the photoelectric threshold for a metal is 8.9×10 10 Determine the wavelength of…

Q: A metal surface is illuminated by light with a wavelength of 2,8. 107 m. If the stopping potential…

A: Wavelength of light λ = 2.8×10-7 m Stopping potential Vo = 0.7 V Detachment energy W = ?

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

Concept explainers

Blackbody

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

Question

100%

Light of wavelength 5.6×10 1° m from a mercury arc falls upon a metallic
photocathode, and the least potential difference applied between the anode
and the photocathode to prevent photocurrent is 8.9 V. Calculate the
photoelectric threshold for the metal in pm.
Answer:

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Barium has a work function of 2.48 eV. Calculate the maximum speed of the ejected photoelectrons when barium is illuminated by a 453 nm source.
In aphotoelectric effect experiment, light of frequency 1.15x10-15 Hz strikes a metal surface and electrons are emitted immediately. The work function of the metal is 2.3 eV. Calculate the 8. (a) threshold frequency of the metal. (b) maximum kinetic energy of the photoelectrons. (c) stopping potential of the photoelectrons.
Ex. 55: Photoelectric threshold wave-length of à certain metal is 3315 A.U. Then its work function is (Oct. 2009) (a) (c) 6 × 10-¹⁰ J 9 × 10-¹⁹ J (b) 7.286 × 10-19 J (d) 9.945 × 10-19 J
Light with a frequency of (1.99x10^15) Hz hits a metal with a work function of (4.200x10^0) eV. Determine the maximum velocity of photoelectrons generated by this setup.
Photoelectric threshold wave-length of Tungsten is 2730 A . Calculate its work function in electron volts. (Velocity of light = 3 x 108 m/s, Planck's constant = 6.6 x 10-34 Js) %3D %3D
Photoelectric work function of a photo- sensitive material is 3 x 10-19 J. Calculate its threshold wavelength.
Estimate the binding energy of electrons in magnesium, given that the wavelength of 337 nm is the longest wavelength that a photon may have to eject a photoelectron from magnesium photoelectrode. Electrons are bound to the magnesium with potential depth of at least eV.
When a surface is irradiated with light of wavelength 4950 A, a photocurrent appears which vanishes if a retarding potential greater than 0.6 V is applied across the phototube. When different source of light is used, it is found that the critical retarding potential is changed to 1.1 V. Find the work function of the emitting surface and the wavelength of the second source. ........
What wavelength of light is shining on a metal with work function ?=2.8??, if the stopping potential for the photocurrent (ejected electrons) is 5??
The cutoff frequency depends on the type of metal: TRUE / FALSE The saturation level for the photoelectric current depends on the number of incident photons impinging on the surface per unit time: TRUE / FALSE The stopping potential can take on positive values for some metals: TRUE / FALSE The stopping potential for the photoelectrons is zero at the cutoff wavelength for the incident photons: TRUE / FALSE The intensity of the incident light has no effect on the photoelectric effect: TRUE / FALSE