E+hc/λ
λ=hc/E
Plug values,
λ =(6.626*10^-34*2.99*10^8)/(3.68*10^-19)
λ=5.38*10^-7 m
What is the wavelength of the photon? asot Edge 88049282 bers into Equations t previous |...
An x-ray photon is scattered from a free electron (mass m) at rest. The wavelength of the scattered photon is λ′, and the final speed of the struck electron is v. Part A Part complete What was the initial wavelength λ of the photon? Express your answer in terms of λ′, v, m, and the appropriate constants. For the wavelength of the scattered photon λ′ use the notation λf. (Hint: Use the relativistic expression for the electron kinetic energy.) Express...
6. Determine the frequency (V) and energy (E) of a photon with a wavelength ) of 595 nm if E hv and v chh, where h 6.63 x 10-34 J s (Planck's constant), c 3.00 x 10+s m/s (speed of light), and 1 m 10*9 nm. Show all units and use the correct number of significant figures.
A photon has an energy of 7.9 x 10-20 J. What is its wavelength? (Planck’s constant is h is 6.63 x 10-34 J s-1; the speed of light is 2.99 x 108 m sec-1).
PART A Calculate the energy of a photon of electromagnetic radiation whose frequency is 2.79×1014 s−1 . Express your answer with the appropriate units. Calculate the energy of a photon of radiation whose wavelength is 429 nm . Part B Express your answer with the appropriate units. Part C What wavelength of radiation has photons of energy 6.19×10−19 J ? Express your answer with the appropriate units.
7. If a photon absorbed 6.043 x 10 J of energy, what is the wavelength of this photon? 8. What part on the electromagnetic spectrum does the wavelength calculated in question 7 fall in (Refer to Figure 2)
What is the energy in joules of one photon of microwave radiation with a wavelength of 0.122 m? A. 2.70x 10-43 J B. 5.43x 10-33 J C. 1.63 x 10-24 J D. 4.07 x 10-10 J E. 2.46 x 109 J
5. What is the momentum (in SI units) of a photon of wavelength A = 410 nm? (Planck's constant h 6.626x 1034 J.s.) A. 1.62 x102 kg m/s B. 2.45 x 10 27 kg m/s C. 3.23x 1027 kg m/s D. 4.67 x 1027 kg m/s E. 5.29 x 1027 kg m/s 6. An electron (me = 9.11 x 10-31 kg) traveling with a velocity of 1.1 x 106 m/s has a de Broglie wavelength of approximately A. 0.66 nm....
My question is attached. Question 8 Status: Incorrect Points earned: 0.00/1.00 Visible light falls into wavelength ranges of 400-700 nm, for which 1 m = 1 x 10° nm. The energy and wavelength of light are related by the equation hc E where E is energy in Joules, h is Planck's constant (6.626 x 10-34 J-s), c is the speed of light ( 2.998 x 108 m/s), and is the wavelength in m. If a visible light photon has a...
PART A: How much energy does the electron have initially in the n=4 excited state? En = −1.36×10−19 J PART B: What is the change in energy if the electron from Part A now drops to the ground state? ΔE = −2.04×10−18 J PART C: What is the wavelength λ of the photon that has been released in Part B? Express your answer numerically in meters.
(a) What energy (in eV) would a photon have, if it were emitted when an electron dropped from the n = 5 level to n = 2? 2.865 eV (b) The equation for a photon's energy can be written: Echo where h is known as Planck's constant and is equal to 4.136 x 10-15 eV · s. (Note that h has a different numerical value in SI units.) Since we know that for light © = f, we can rewrite...