Find the de Brolie wavelength of an electron when its group velocity is 2.5 x 10^8 m/s and .the rest energy is 500 keV

Q: What is the mass of a small car in grams, if its de Broglie wavelength is 4.198×10-38 m m when it is…

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A: Write the expression of average electron energy in eV. E=32kT

Q: If free electrons with kinetic energy 12.75 eV collide with these atoms, what photon wavelengths…

A: The expression for the energy is,

Q: What is the velocity of a 0.400-kg billiard ball if its wavelength is 6.1 cm cm (large enough for it…

A: The wavelength, λ=6.1 cm=6.1×10-2 m   The mass of the billiard ball, m=0.400 kg

Q: Find the de Brolie wavelength of an electron when its group velocity is 2.5 x 10^8 m/s and the rest…

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Q: A proton is confined to a nucleus whose diameter is 5.5 × 10^−15 ?. If this distance is considered…

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Q: Tellurium has a work function of 4.95 eV. What is the minimum frequency of light needed to eject…

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Q: Light of wavelength 191 nm is shone on copper, which has a work function (or binding energy) of 4.94…

A: The maximum kinetic energy of the electrons can be given by Kmax=hf-ϕ Also, Kmax=12mvmax2

Q: A charged particle is moving in magnetic field on a circular orbit. The magnetic field B is uniform…

A: Let m denote the mass of the charged particle and q denotes its charge. The charged particle moving…

Q: A photon of 3.53 x 10-28 kg.m/s momentum is emittedfrom a hydrogen atom. To what spectrum series…

A: Given values: The momentum of photon, p=3.53×10-28 kg.m/s Velocity of light, c=3×108 m/s Planck's…

Q: What is the wavelength of the hydrogen Balmer Series photon for m=4 and n=2 using the Rydberg…

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Q: Compute the wavelength for the following  a) An electron with 1eV kinetic energy  b) A 10g bullet…

A: Given  Energy of the electron is E=1eV=1.6×10-19 J Mass of the bullet is m=10 g=10×10-3 kg Speed of…

Q: Calculate the(a) momentum, and(b) de Broglie wavelength of the electrons accelerated through a…

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Q: In the ground state of hydrogen, the uncer- tainty in the position of the electron is roughly 0.11…

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Q: In accordance with the Boh find the quantum number t

A: Givenr=1.5×1011 mv=3×104 m/sm=6×1024 kg

Q: Find the energy associated with the 3rd line of the Paschen series in the hydrogen emission…

A: We know the formula for Paschen Series : 1λ=R132-1n2     here, n=4,5,6,.....And R(Rydberg…

Q: Find the de Brolie wavelength of an electron when its group velocity is 2.5 x .10^8 m/s and the rest…

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Q: What is the wavelength (in meters) of a 0.5 kg particle moving with a velocity of 6.63x10-34 m/s?…

A: Given data:  Mass (m) = 0.5 kg Velocity (v) = 6.63×10-34 m/s h = 6.63×10-34 J.s Required: Wavelength…

Q: The de Broglie wavelength (in nanometer) for an electron moving with 5.739 x 10“ m/s is:

A: Given: The speed of the electron is 5.739x104 m/s.

Q: An electron in a one-dimensional box has ground-state energy 2.00 eV. What is the wavelength of the…

A: Given: The energy of electron in-ground energy state = 2 eV

Q: Find the de Broglie wavelength of an electron in the ground stateof the hydrogen atom.

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Q: What is the kinetic energy of an electron (in eV), if its de Broiglie wavelength is 8.08 Å? Answer:

A: Given: The de Broglie wavelength is 8.08 Ao.

Q: What would be the velocity in m/s of a horse if it weighs 4.704e+8 g and its de Broglie wavelength…

A: Given data Mass, m=4.7×108 g=4.7×105 kg Wavelength,λ=1.062×10-40 m

Q: Find the energy of the photon required to excite a hydrogenatom from the n = 1 state to the n = 4…

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Q: What is the deBroglie wavelength of a 1500 kg car traveling at 100km/hr(27.8 m/s)?

A: The equation for the de Broglie wavelength is given by

Q: An atom in an excited state temporarily stores energy. If the lifetime of this excited state is…

A: To determine: The minimum uncertainty in the energy of the atom in the excited state   Given: The…

Q: Consider an electron in a hydrogen atom, revolving in its second excited state (having radius 4.65…

A: The radius is given by r=4.65 Å

Q: What is the deBroglie wavelength of an electron after being accelerated through a potential…

A: Wavelength is given by formula,  λ=h2mE Here, h=6.625×10-34 is Plank's constant.  Apply the…

Q: Calculate the wavelength of a.) a neutron with a translational kinetic energy equal to kT at 298 K.…

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Q: The work function for tungsten (W) is 4.52 eV. What is the maximum Kinetic Energy of emitted…

A: Given :The work function for tungsten (W) is 4.52 eV.wavelength λ = 200 nm

Q: What is the wavelength of an electron of energy(a) 10 eV, (b) 100 eV, (c) 1.0 keV?

A: (a) The energy of the electron is 10 eV. Calculation: Write the expression for the wavelength of the…

Q: What is the length of a box in which the minimum energy of an electron is 1.5 x 10-18 J?

A: The energy of a particle in the box is given by, En=n2h28mL2

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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Q: Calculate the uncertainty in the momentun of an electron laying in a state with uncertainty in its…

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Q: A 10 kg satellite circlė ėa éárth ônce energY 2h in an orbit having a radius of 8000 km. Assuming…

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Q: An electron and a 0.020 0 - kg bullet each have a velocity of magnitude 5.00x 102 m/s, accurate to…

A: According to the Heisenberg uncertainty principle,

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Q: Find the energy levels of a particle of mass m moving in a potential V(r)=6r^4 using the Bohr…

A: Potential function V(r) = 6r⁴ Mass of particle = m Bohr Quantization Condition: An electron can…

Q: Find the excitation energy from the ground level to the third excited level for an electron confined…

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Q: What is the kinetic energy of an electron in a TEM having a 0.0100-nm wavelength?

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Q: A free electron with kinetic energy 12eV collides with a Hydrogen atom and causes the atom to be…

A: Kinetic energy of free electron,KE=12 eV Ground state energy of hydrogen atom, E0=-13.6 eV First…