A collection of hydrogen atoms in the ground state is illuminated with ultraviolet light of wavelength 59.0 nm. Find the kinetic energy of the emitted electrons.

Q: Electrons in a photoelectric effect experiment emerge from a copper surface (E0 = 4.65 eV) with a…

A: work function of a copper surface (w) = 4.65 eV maximum kinetic energy of the photoelectrons (K.E) =…

Q: The wavelength of a yellow photon is 660 nm. At what kinetic energy would an electron have that…

A: Wavelength of yellow photon = 660 nm = 660 X 10-9 m Mass of electron, m = 9.11 X 10-31 kg

Q: If a particle weighs 7.61 kg and has a de Broglie wavelength of 2.06 x 10-39 m , what is its current…

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Q: What is the wavelength of a proton traveling at a speed of 8.31 km/s?

A: The velocity of the proton,

Q: The wavelength of a yellow photon is 660 nm. At what kinetic energy would an electron have that…

A: The relation between the momentum and the de Broglie wavelength is  where, h is the Plank's…

Q: What is the maximum speed of emitted photoelectrons if a beam of light of wavelength 200 nm is shone…

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Q: Calculate the minimum - wavelength x - ray that can be produced when a target is struck by an…

A: Write the expression for minimum wavelength of the X ray .

Q: What is the maximum kinetic energy of an emitted electron if light with a frequency of 2x1015Hz…

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Q: In a photoelectric experiment using a sodium surface, you find a stopping potential of 1.85 V for a…

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Q: What is the kinetic energy of a proton whose de Broglie wavelength is 15.4 fm?

A: p=hλ=6.63×10-34 J·s15.4 fm10-15 m1 fm=0.431×10-19 m

Q: The work function of an unknown metal is 5.15 eV. What is the longest wavelength, in nanometers, of…

A: Given that Work function = 5.15eV

Q: Find the kinetic energy of an electron whose de Broglie wavelength is 2.9 Å.

A:

Q: What is the ratio of radii of the orbits corresponding to first excited state and ground state in a…

A: The radii of Hydrogen atom in particular 'n' state is given by the relation :  radii of Hydrogen…

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

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Q: Calculate the de Broglie wavelength of a proton moving at (a) 2.00 × 104 m/s and (b) 2.00 × 107 m/s

A: (a)   Calculate the de Broglie wavelength of a proton at 2.00×104 m/s as below.

Q: The maximum energy of photoelectrons from aluminum is 2.3 ev for radiation of wavelength 200nm and…

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Q: An electron at rest is struck by an x-ray photon. If the scatter angle is 180° and the final speed…

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Q: An atom (not a hydrogen atom) absorbs a photon whose associated wavelength is 375 nm and then…

A: The expression to determine the net energy is,

Q: Find the minimum frequency a photon must have if it is to ionize the ground state of the hydrogen…

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Q: Find the maximum kinetic energy of the photoelectrons if light of wavelength 223 nm shines on a…

A: Wavelength, λ=223 nm=223×10-9 m Work function, φ=2 eV

Q: What is the minimum energy that will allow electrons to be ejected from a metal surface during the…

A: In first question, we need to answer what is known as minimum energy that will allow electrons to be…

Q: The velocity (m/s) of an electron with a de Broglie wavelength of 1.679 nm is:

A: wavelength of electron(λ)=1.679 nm=1.679×10-9m mass of electron(m)=9.11×10-31 kg Planck…

Q: Find the wavelength of the electromagnetic radiation, which emitted, when a photon of energy (4eV)…

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Q: Can an electron in a hydrogen atom have a speed of 3.60 × 105 m/s? If so, what are its energy and…

A: The expression for the velocity of electron in Hydrogen atom is given by, Here, n is the state of…

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: Light of frequency 9.95 x 1014 Hz ejects electrons from the surface of silver. If the maximum…

A: Frequency of incident light: ν = 9.95 x 1014 Hz Kinetic energy of ejected electrons: KE = 0.180 x…

Q: What are the (a) energy, (b) magnitude of the momentum, and (c) wavelength of the photon emitted…

A: The energy of a hydrogen atom,

Q: What is the work function of the metal, if the light of wavelength 4000 Å generates photoelectron of…

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Q: Find the threshold wavelengths for photoelectric effect from a copper surface, a sodium surface and…

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Q: Calculate the velocities of electrons with de Broglie wavelengths of 1.7×103 nm and 5.0 nm,…

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Q: An electron is moving with a speed of 3.00 x 10° m/s. What is the speed of a proton that has the…

A: We have to use de broglei formula here.

Q: For a certain metal, the threshold wavelength for the photoelectric effect is 664.0 nm. What is the…

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Q: nd Planck’s

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Q: Lithium has a work function of 2.51 eV. What is the maximum kinetic energy of the photoelectrons if…

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Q: By what factor does the de Broglie wavelength of a particle change if (a) its momentum is doubled or…

A: Step1 - Here we will solve part(a) of the question.             (a). its momentum is doubled…

Q: What is the wavelength of (a) a photon with energy 1.00 eV, (b) an electron with energy 1.00 eV, (c)…

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Q: A surface has a work function 1.70 eV and has light of wavelength 400 nm shone on it. What is the…

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Q: An electron is accelerated from rest through a potential difference of 100 V. What is the de…

A: Given:   An electron is accelerated through a potential difference , V = 100 V   To determine: The…

Q: The de Broglie wavelength of a 60 g golf ball is 4.28x10−34 m. What is its speed?

A: According to De Brogile wavelength formula, d = h/p Where d denotes wavelength, p is momentum and is…

Q: A photon of wavelength 200 nm strikes a metal and ejects an electron with a velocity of 3.4x10^5…

A: The emission of electrons from the surface of a metal when photons hit its surface, is known as the…

Blackbody

Q.5 A blackbody radiates how much energy when the temperature of the body is elevated?