Question
In: Physics
Explain the photoelectric effect. Explain the work function and the threshold frequency. How do you obtain...
Explain the photoelectric effect. Explain the work function and the threshold frequency.
How do you obtain maximum kinetic energy of the ejected electron?
Solutions
genius_generous answered 2 years agoRelated Solutions
In his explanation of the threshold frequency in the photoelectric effect, Einstein reasoned that the absorbed...
In his explanation of the threshold frequency in the
photoelectric effect, Einstein reasoned that the absorbed photon
must have the minimum energy required to dislodge an electron from
the metal surface. This energy is called the work function () of
that metal. What is the longest wavelength of radiation (in nm)
that could cause the photoelectric effect in each of the following
metals?
(a) Tungsten, = 7.16 10-19 J
__nm
(b) Tantalum, = 6.41 10-19 J
__nm
(c) Silver, =...
4) why doesn't the existence of a threshold frequency for the photoelectric effect make sense from...
4) why doesn't the existence of a threshold frequency for the
photoelectric effect make sense from the point of view of a
continuous wave model of light?
4b) how does the concept of a photon explain the existence of a
threshold frequency?
The work function for silver is 4.7 eV. (a) Find the threshold frequency and wavelength for...
The work function for silver is 4.7 eV.
(a) Find the threshold frequency and wavelength for the
photoelectric effect to occur when monochromatic electromagnetic
radiation is incident on the surface of a sample of silver.
Hz
nm
(b) Find the maximum kinetic energy of the electrons if the
wavelength of the incident light is 180 nm.
eV
(c) Find the maximum kinetic energy of the electrons if the
wavelength of the incident light is 240 nm.
eV
A metal surface is susceptible to a photoelectric threshold frequency of 8.529*10>14Hz. Will the monochromatic UV...
A metal surface is susceptible to a photoelectric threshold
frequency of 8.529*10>14Hz. Will the monochromatic UV light
sources of wavelengths 283 nm, 342 nm, and 363 nm be able to eject
photoelectrons from the metal. If so what is the speed of the
fastest electron ejected?
A metal surface is susceptible to a photoelectric threshold frequency of 8.529*10>14Hz. Will the monochromatic UV...
A metal surface is susceptible to a photoelectric threshold
frequency of 8.529*10>14Hz. Will the monochromatic UV light
sources of wavelengths 283 nm, 342 nm, and 363 nm be able to eject
photoelectrons from the metal. If so what is the speed of the
fastest electron ejected?
Explain the photoelectric effect. Write the Einstein’s equation for the photoelectric effect and name all the...
Explain the photoelectric effect. Write the Einstein’s equation
for the photoelectric effect and name all the terms of the
equation.
Can someone explain how the photoelectric effect is implemented when analyzing a sample in the lab?
Can someone explain how the photoelectric effect is implemented
when analyzing a sample in the lab?
Describe the photoelectric effect and explain how XPS is used for chemical analysis. List the similarities...
Describe the photoelectric effect and explain how XPS is used
for chemical analysis. List the similarities and differences
between XPS and AES.
8) The photoelectric work function of a metal is the minimum energy needed to eject an...
8) The photoelectric work function of a metal is the minimum
energy needed to eject an electron by irradiating the metal with
light. For calcium, this work function equals 4.34 x 10-19 J. What
is the minimum frequency of light required to observe the
photoelectric effect in calcium?
9) Light of wavelength 345 nm shines on a piece of calcium
metal. What is the speed of the ejected electron? (Light energy
greater than that of the work function of calcium...
Define the photoelectric effect and describe how Planck and Einstein contributed
Define the photoelectric effect and describe how Planck and
Einstein contributed
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