Question

**Calculate the difference in energy (in joules) between a
photon with**

λ

**= 719 nm and a photon with**

λ

**= 339 nm. Enter your answer in scientific
notation.**

Answer #1

i) Energy of photon with = 719 nm

Energy of photon is calculated by the following formula

E = hc/

where,

h = planck constant , 6.626×10^{-34} J.s

c = speed of light , 2.998 ×10^{8}m /s

= wavelength of photon , 719nm = 719×10^{-9} m

ii) Energy of 719nm photon

E=(6.626×10^{-34}J.s ×
2.998×10^{8}m/s)/719×10^{-9}m =
2.76×10^{-19}J

iii) Energy of 339nm photon

E = ( 6.626×10^{-34}J.s ×
2.998×10^{8}m/s)/339×10^{-9}m =
5.86×10^{-}^{19}J

iv) difference in energy = 5.86×10^{-19}J -
2.76×10^{-19}J = 3.10×10^{-19} J

Calculate the energy in Joules for a photon with a wavelength of
400 nm. Report your answer to 4 significant figures using
scientific notation. (Ex: 1.345E-17 should be entered for 1.345 x
10-17)

Calculate the energy, in joules, for a photon of 1024 nm
light.

When copper is bombarded with high-energy electrons, X-rays are
emitted. Calculate the energy (in joules) associated with the
photons if the wavelength of the X-rays is 0.455 nm. Enter your
answer in scientific notation.

Calculate λ (in nm) for a photon with E = 2.68x10-15 J?

A Be3+ ion emitts a photon with a wavelength of 6.42
× 100 nm. If the energy of the initial state of the
Be3+ ion was -3.88 × 10(-18) J, calculate the
energy of the final state. Express answer in scientific
notation.

Calculate the energy (in joules) of each photon that is emitted
from a patch of ground that is at 32 ∘C. Use the λmax of
that temperature as your wavelength.

Calculate the energy difference
(ΔE) for the electron transition
of n = 5 to n =
1 for 1.00 mol of hydrogen atoms. Enter your answer in scientific
notation.

Calculate the wavelength in nm of a photon whose energy is 6.00
x 10^-19 ? Would the photon have enough energy to ionize a hydrogen
atom in its ground state? Use the Bohr equation to explain your
answer.

1.) Calculate the energy difference (?E) for the electron
transition of n = 3 to n = 2 for 1.00 mol of hydrogen atoms. Enter
your answer in scientific notation.
2.) A lithium flame has a characteristic red color due to
emissions of wavelength 671 nm. What is the mass equivalence of 1.0
mol of photons of this wavelength
(1 J = 1 kg·m2/s2)?
------ × 10^------- kg (Enter your answer in scientific
notation.) -> the dotted lines are the...

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...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 22 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 3 hours ago