An electron is in a one-dimensional box. When the electron is in its ground state, the longest-wavelength photon it can absorb is 420 nm. What is the next longest-wavelength photon it can absorb, again starting in the ground state?

Q: Photoelectrons with a maximum kinetic energy of 7.95 eV are emitted from a metal when it is…

A: The kinetic energy of the electron is given in electron volts (eV). However, in order to calculate…

Q: When light of wavelength 250nm is incident on a metal surface, the maximum speed of the…

A: Given:  incident wavelength = 250 nm = 250 x 10-9 m  maximum speed, v = 4 x 105 m/s

Q: What is the maximum kinetic energy (in eV) of the photoelectrons when light of wavelength 260.0 nm…

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Q: Assume we have a material with a work function of 4.94 eV. What is the maximum speed, in meters per…

A: Given Work function of the material is ϕ=4.94 eV=4.94×1.6×10-16 J=7.90×10-19 J Wavelength of the…

Q: lectron with an initial total energy of E=3.757 eV (in a region with zero potential) is incident on…

A: Given: The initial total energy of the electron is 3.757 eV.            The potential is 1.952 eV.…

Q: An x ray tube has an applied voltage of 100 kV.What is the most energetic x-ray photon it can…

A: Given: An x ray tube has an applied voltage of 100 kV. A particle that is accelerated through a…

Q: Fresh out of university you've been hired to do some photoelectron spectroscopy. You have a lamp…

A: The maximum kinetic energy of the emitted electron is KEmax=hν-φeV=hcλ-φeV+φ=hcλeV+φhc=1λ

Q: An electron confined in a box of width 0.360nm makes a transition from the n = 1 to n = 4 level by…

A: hcλ=E4-E1=h28mL2n2f-n2iλ=8mL2chn2f-n2i

Q: A photon of wavelength 6.98 pm scatters at an angle of 152° from an initially stationary, unbound…

A: Here use Compton shifting formula

Q: A photon of frequency 1.5x 1015 Hz is scattered by an electron that is initially at rest. Which one…

A: The concept of Compton scattering (which is also known as inelastic scattering) can be used to…

Q: An electron is trapped in a is absorbed, the electron is in the n = 6 energy level. What was the…

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Q: An electron confined to a box absorbs a photon with wavelength λ. As a result, the electron makes a…

A: The equation for the energy at the nth level is given by For the transition from n=1 state to n=3…

Q: An atom initially in an energy level with -6.43 eV absorbs a photon that has wavelength 850 nm. What…

A: Given, Initial energy level=-6.43 eV wavelength λ=850nm c=3×108m/s h=6.626×10-34 m2 kg/s

Q: An electron is trapped in a one-dimensional box that is 501 nm wide. Initially, it is in the n = 3…

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Q: A 35.0 keV collides with an electron. The photon scattered at 90 degree. By what percentage is the…

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Q: A 633 nm helium-neon laser puts out 4.00 W of power with a beam 5.70 mm in diameter. The beam is…

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Q: Consider a photon with wavelength 0.011 nm. l = 0.011 nm What is the momentum of the photon in…

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Q: Just like the optical part of the spectrum, radio waves can be described in terms of photons -…

A: Given data:  A radio wave  Frequency (f) = 88.5 MHz = 88.5×106 Hz Required: The energy in Joules and…

Q: If a proton were traveling the same speed as electrons in a TV picture tube (about 8.5  107 m/s),…

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Q: Q: The line width of a helium-neon laser is 10° Hz. The operating wavelength is 632.8 mm and the…

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Q: What is the wavelength in nm of a photon that has a momentum of 4.5*10^-27 kg.m/s

A: Momentum of the photon,  Planck's constant,    The momentum of the photon is given by the expression…

Q: s question as follows: After a 0.777 nm x-ray photon scatters from a free electron, the electron…

A: Given λ1=0.777 nm=0.777×10-9 mv=1.3×106 m/s

Q: Q. 25 : The energy in eV of a photon, if the frequency of the radiation is 7 × 1014 Hz is

A: Solution:-Given thatfrequency of radiation (f)=7×1014 Hz

Q: How much energy, in joules per mole (J/mol), does a photon in the microwave region of the EM…

A: The frequency of the microwave is given as f=1.09×1010 s-1

Q: The mass of an electron is about 9.11x10^-31 kg.  What is the de Broglie wavlength of an electron…

A: Given data:  The mass of an electron (m) = 9.11×10-31 kg Speed (v) = 0.01 m/s Required: The de…

Q: A single beam of electrons shines on a single slit of width 3.3nm. A diffraction pattern (of…

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Q: The wavelengths of visible light range from approximately 400400 to 750 nm750 nm. Part (a)  What is…

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Q: (a) What is the de Broglie wavelength (in m) of a proton moving at a speed of 3.30 x 104 m/s? m (b)…

A: We have givena. speed of proton is 3.30 x 104 m/sb. speed of proton is 1.92 x 108 m/sc. Energy =…

Q: 0.062-nm photons are incident on stationary electrons. A scattered photon is observed at 134°. Find…

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Q: A light emitting diode produces 8 mW of light, at a wavelength of 550 nm. How many photons per…

A: using formula of energy E = ne

Q: Electrons with a speed of 2.0 x 106 m/s pass through a double-slit apparatus. Interference fringes…

A: (a) The wave length associated with the motion of electron is given by, λe=hmeν Now as we know that…

Q: How much more energy does a 33 nm photon have than a 8670 nm photon? Does the 33 nm photon move at a…

A: The energy of 33nm photon is given by, E1=hcλ1 Here, h is the Planck's constant, c is the speed of…

Q: Which of the following statements are true? Choose all that apply. A photon has kinetic energy.

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Q: ?When a beam of 10.6 eV photons of intensity 2.0 W/m² falls on a platinum surface of area 1.0 x104…

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Q: S. A photon with energy E, = 0.70 MeV moving along the x-axis collides with a free electron at rest.…

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Q: An atom initially in an energy level with -2.59 eV emits a photon that has wavelength 480 nm. What…

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Q: Assume we have a material with a work function of 4.87 eV. What is the maximum speed, in meteres per…

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