Question
The work function for a certain metal is 4.800×10-20 J. What is the threshold frequency for...
The work function for a certain metal is 4.800×10-20 J. What is the threshold frequency for this metal? For this metal, what frequency of light would produce photoelectrons with a maximum kinetic energy of 1.400×10-19 J?
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
a) A photoelectric surface has a work function of 3.30 x 10-19 J. What is the...
a) A photoelectric surface has a work function of 3.30 x 10-19
J. What is the threshold frequency of this surface? (format of a.bc
x 10de Hz)
b) What is the stopping voltage of an electron that has 5.40 x
10-19 J of kinetic energy? (3 digit answer)
c) A photoelectric surface requires a light of maximum
wavelength of 675 nm to cause electron emission. What is the work
function (in eV) of this surface? (3 digit answer)
d) A...
A metal alloy has a work function of E0 = 4.2 × 10?19 J. It is...
A metal alloy has a work function of E0 = 4.2 × 10?19
J. It is irradiated with light of different wavelengths, and the
maximum kinetic energy of ejected electrons is measured. Part A:
What is the maximum kinetic energy of ejected electron when 390-nm
light is used? Part B:vWhat is the maximum electron speed when
390-nm light is used? Part C: Does 750-nm light have enough energy
to eject an electron from the metal?
a) A photon of wavelength 43 nm is incident upon a metal in a photoelectric apparatus....
a) A photon of wavelength 43 nm is incident upon a metal in a
photoelectric apparatus. A stopping voltage of 21 V was obtained.
What is the threshold frequency of the metal? (format of a.b x
10cdHz)
b) Light with a frequency of 5.00 x 1014 Hz
illuminates a photoelectric surface that has a work function of
2.10 x 10-19 J. What is the maximum kinetic energy of
the emitted photoelectrons? (format of a.bc x 10-de J
)
c) Light...
If the work function of a material is 2.20 eV, what frequency of incident light would...
If the work function of a material is 2.20 eV, what frequency of
incident light would give a maximum kinetic energy of 0.25 eV to
the photoelectrons ejected from the surface of this material? (1 eV
= 1.60 × 10-19 J, h = 6.626 × 10-34 J ∙ s)
5.92 × 1014 Hz
3.53 × 1014 Hz
1.02 × 1014 Hz
2.50 × 1014 Hz
2.05 × 1014 Hz
1. The work function of a certain metal is φ = 2.25 eV. Determine the minimum...
1. The work function of a certain metal is φ = 2.25 eV.
Determine the minimum frequency of light f0 for which
photoelectrons are emitted from the metal. (Planck's constant is: h
= 4.1357×10-15 eVs.)
Tries 0/99
2. Determine the corresponding wavelength of light. (Possibly
useful constant: hc = 1240 eVnm.)
Tries 0/99
3. Calculate the kinetic energy of the emitted electrons if the
frequency of the photons is doubled to 2f0.
The minimum frequency of light needed to eject electrons from a metal is called the threshold...
The minimum frequency of light
needed to eject electrons from a metal is called the threshold
frequency, ν0. Find the minimum energy needed to eject electrons
from a metal with a threshold frequency of 3.35 × 1014
s–1.
With what maximum kinetic energy will electrons be ejected when
this metal is exposed to light with a wavelength of λ = 265 nm?
The minimum frequency of light needed to eject electrons from a metal is called the threshold...
The minimum frequency of light needed to eject electrons from a
metal is called the threshold frequency, ν0. Find the minimum
energy needed to eject electrons from a metal with a threshold
frequency of 2.05 × 1014 s–1.
With what maximum kinetic energy will electrons be ejected when
this metal is exposed to light with a wavelength of λ = 265 nm?
When a metal was exposed to one photon of light at a frequency of 4.55× 1015...
When a metal was exposed to one photon of light at a frequency
of 4.55× 1015 s–1, one electron was emitted with a kinetic energy
of 4.10× 10–19 J. Calculate the work function of this metal. What
is the maximum number of electrons that could be ejected from this
metal by a burst of photons (at some other frequency) with a total
energy of 5.11× 10–7 J?
When a metal was exposed to one photon of light at a frequency of 4.55× 1015...
When a metal was exposed to one photon of light at a frequency
of 4.55× 1015 s–1, one electron was emitted with a kinetic energy
of 4.10× 10–19 J. 1)Calculate the work function of this metal. 2)
What is the maximum number of electrons that could be ejected from
this metal by a burst of photons (at some other frequency) with a
total energy of 5.11× 10–7 J?
The work function for gold is 5.01 eV. (a) Find the threshold frequency and wavelength for...
The work function for gold is 5.01 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 gold. In Hz and
nm
(b) Find the maximum kinetic energy of the electrons if the
wavelength of the incident light is 160 nm.in eV (
c) Find the maximum kinetic energy of the electrons if the
wavelength of the incident light is 220 nm. In...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 17 minutes ago
asked 18 minutes ago
asked 35 minutes ago
asked 38 minutes ago
asked 59 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago