Question
In: Physics
When ultraviolet light with a wavelength of 400 nm falls on acertain metal surface, the...
When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the maximum kinetic energy of the emitted photoelectrons is 1.10 eV .
Part A What is the maximum kinetic energy K0 of the photoelectrons when light of wavelength 280 nm falls on the same surface?
Use h = 6.63×10−34 J⋅s for Planck's constant and c = 3.00×108 m/s for the speed of light and express your answer in electron volts. View Available Hint(s) K0K_0 = eV
Solutions
genius_generous answered 2 years agoRelated Solutions
When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the...
When ultraviolet light with a wavelength of 400 nm falls on a
certain metal surface, the maximum kinetic energy of the emitted
photoelectrons is 1.10 eV.What is the maximum kinetic energy K0 of
the photoelectrons when light of wavelength 310 nm falls on the
same surface? Use h = 6.63×10−34 J⋅s for Planck's constant and c =
3.00×108 m/s for the speed of light and express your answer in
electron volts.
When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the...
When ultraviolet light with a wavelength of 400 nm falls on a
certain metal surface, the maximum kinetic energy of the emitted
photoelectrons is 1.10 eV .
A. What is the maximum kinetic energy K0 of
the photoelectrons when light of wavelength 330 nm falls on the
same surface? Use h = 6.63×10−34 J⋅s for
Planck's constant and c = 3.00×108 m/s for the
speed of light and express your answer in electron volts.
When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the...
When ultraviolet light with a wavelength of 400 nm falls on a
certain metal surface, the maximum kinetic energy of the emitted
photoelectrons is 1.10 eV.
What is the maximum kinetic energy Ko of the photoelectrons when
light of wavelength 320 nm falls on the same surface?
Use h = 6.63
When light of wavelength 400 nm is incident on a metal surface, the stopping potential of...
When light of wavelength 400 nm is incident on a metal surface,
the stopping
potential of the photoelectrons is 0.600 V.
a. What is the work function of the metal?
b. What is the threshold frequency?
c. What is the maximum kinetic energy of the electron?
A 3.00-W beam of light of wavelength 122 nm falls on a metal surface. You observe...
A 3.00-W beam of light of wavelength 122 nm falls on a metal
surface. You observe that the maximum kinetic energy of the ejected
electrons is 4.20 eV . Assume that each photon in the beam ejects a
photoelectron.
Part A
What is the work function (in electron volts) of this metal?
ϕ = ??? eV
Part B
How many photoelectrons are ejected each second from this
metal?
N = ??? electrons/s
Part C
If the power of the light...
When light with a wavelength of 247 nm is incident on a certain metal surface, electrons...
When light with a wavelength of 247 nm is incident on a certain
metal surface, electrons are ejected with a maximum kinetic energy
of 2.84 × 10-19 J. Determine the wavelength (in nm) of
light that should be used to double the maximum kinetic energy of
the electrons ejected from this surface.
When light with a wavelength of 215 nm is incident on a certain metal surface, electrons...
When light with a wavelength of 215 nm is incident on a certain
metal surface, electrons are ejected with a maximum kinetic energy
of 3.33 × 10 − 19 J. Determine the wavelength of light that should
be used to quadruple the maximum kinetic energy of the electrons
ejected from this surface.
When light of wavelength 420 nm strikes a metal surface, photoelectrons having a kinetic energy of...
When light of wavelength 420 nm strikes a metal surface,
photoelectrons having a kinetic energy of 6.0 x 10-20 J
are released.
a) What is the energy needed to remove an electron from
the metal atom?
b) How much total energy would be needed to remove an
electron from a mole of these metal atoms?
c) How many moles of photons would be required in part
(b)?
When light of wavelength equal to 364 nm strikes a metal, the kinetic energy of the...
When light of wavelength equal to 364 nm strikes a metal, the
kinetic energy of the ejected electron is 4.12 × 10-19 J. What is
the work function of the metal?
When 210 nm light falls on a metal, the current through a photoelectric circuit is brought...
When 210 nm light falls on a metal, the current through a
photoelectric circuit is brought to zero at a stopping voltage of
1.54 V . What is the work function of the metal? Express your
answer using three significant figures.
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