Question

Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.60 10-19 J. (a) a photon having a frequency of 4.20 1017 Hz eV (b) a photon having a wavelength of 6.20 102 nm eV

Answer #1

Find the energy of the following. Express your answers in units
of electron volts, noting that 1 eV = 1.60 10-19 J.
(a) a photon having a frequency of 6.20 1017 Hz
eV
(b) a photon having a wavelength of 2.20 102 nm
eV

A(n) x-ray photon has a wavelength of 7.80 ✕ 10−9 cm. Find the
momentum, the frequency, and the energy of the photon in electron
volts. (a) the momentum kg · m/s (b) the frequency Hz (c) the
energy of the photon in electron volts eV Im having trouble. please
help

A photon with a wavelength of 2.47 nm strikes a surface and
emits an electron with kinetic energy of 228 eV (electron volts).
What is the binding energy of the electron in J? Round your answer
to 2 sig figs. 1 electron volt = 1.602 x 10-19 J

a) What is the energy of a photon (in eV) that has a wavelength
of 466 nm? (3 digit answer)
b) What is the energy (in eV) of a photon that has a wavelength
of 460 nm?
c) What is the wavelength of a photon that has 2.1 eV of kinetic
energy? (format of a.b x 10-c m )
d) a photoelectric surface has a work function of 2.00 eV. What
is the threshold frequency of this surface? (format of
a.bc...

(a) Calculate the wavelength of light in vacuum that has a
frequency of 5.14 ✕ 1018 Hz.
nm
(b) What is its wavelength in crown glass?
nm
(c) Calculate the energy of one photon of such light in vacuum.
Express the answer in electron volts.
eV
(d) Does the energy of the photon change when it enters the crown
glass?
The energy of the photon does not change.
The energy of the photon changes.
Explain why?

Find the wavelength (in nm) of a photon whose energy is 6.70 ×
10-19 J.
The maximum wavelength that an electromagnetic wave can have and
still eject electrons from a metal surface is 507 nm. What is the
work function W0 of this metal? Express your
answer in electron volts.
In the Compton effect, an X-ray photon of wavelength 0.16 nm is
incident on a stationary electron. Upon collision with the
electron, the scattered X-ray photon continues to travel in...

A. What is the energy in 10-3 eV of a photon that has
a momentum of 6.13×10−29 kg ⋅ m/s ?
B. What is the energy in 10-9 eV of a photon in a
radio wave from an AM station that has a 1,506 kHz broadcast
frequency?
C. Calculate the frequency in 1020 Hz of a 0.571 MeV
γ-ray photon.
D. A certain molecule oscillates with a frequency of
1.73×1013 Hz. What is the approximate value of
n for a...

(a) An electron has a kinetic energy of 6.23 eV. Find its
wavelength. nm (b) A photon has energy 6.23 eV. Find its
wavelength. nm

Find the energy of a photon of wavelength 500 nm that is
traveling in vacuum. Express your result in eV

Cobalt−60 is a radioactive isotope used to treat cancers of the
brain and other tissues. A gamma ray emitted by an atom of this
isotope has an energy of 5.90 MeV (million electron volts; 1 eV =
1.602 × 10−19 J). What is the frequency (in Hz) and the wavelength
(in m) of this gamma ray? Enter your answers in scientific
notation. Frequency: × 10 Hz Wavelength: × 10 m

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 12 minutes ago

asked 13 minutes ago

asked 23 minutes ago

asked 24 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago