A photon of wavelength 200 nm strikes a metal and ejects an electron with a velocity of 3.4x10^5 m/s. What is the threshold frequency of the metal?

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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Q: Light of wavelength 300.0 nm is incident on a metal that has a work function of 2.30 eV. What is the…

A: Given data The wavelength of the light is given as λ=300 nm. The work function of the metal is…

Q: An electron has a de Broglie wavelength λ = 4.5×10−10 m . h=6.626×10−34 J⋅s, e=1.602×10−19 C,…

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Q: As an electron in a one-dimensional box of length 0.600 nm jumps between two energy levels, a photon…

A: Given: The length of box is 0.600 nm. The energy of 8.36 eV.

Q: If the de Broglie wavelength of a particle is 1032 nm, how fast is the electron moving?

A: The expression for the speed of the moving electron,

Q: A measurement is made of a photon’s energy (from a laser) that results in an uncertainty in the…

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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: What is the velocity of an electron that has a de Broglie wavelength of approximately 1.2×10-10?

A: Given: wavelength = 1.2×10-10 m

Q: The threshold frequency of silver is 11.2×1015 Hz. What is the work function of silver? Planck’s…

A: Threshold frequency = f  = 11.2×1015 Hz Planck's constant = h=6.63×10-34 Hz Work function will be…

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: Photons of wavelength 325nm shine on a metal surface and electrons are ejected. A stopping potential…

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Q: In the photoelectric effect, it is found that incident photons with 4.80 eV of energy will produce…

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Q: Light with a frequency of 2.89×10152.89×1015 Hz ejects electrons from the surface of aluminum, which…

A: The expression for the de-Broglie wavelength,

Q: In the photoelectric effect, it is found that incident photons with 4.90 eV of energy will produce…

A: Given data: The energy of photon is E=4.9 eV. The maximum kinetic energy is KE=3.6 3V. The Plank's…

Q: In the photoelectric effect, it is found that incident photons with 4.90 eV of energy will produce…

A: Given :     Energy of incident photons, E = 4.90 eV     Kinetic energy of electron, K.E = 4.30 eV…

Q: The work function of caesium metal is 2.14 eV. When light of frequency 6 ×1014 Hz is incident on the…

A: Given: Work function, W = 2.14 eV Frequency, f =  6 ×1014

Q: If the de Broglie wavelength of an electron is equal to 5.0 e -7-m, how fast is the electron moving?…

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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: The energy required to eject an electron from the surface of a metal is 4.8 eV. a) What is the…

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Q: An electron has a de Broglie wavelength λ = 4.5×10−10 m .h=6.626×10−34 J⋅s, e=1.602×10−19 C,…

A: Given,  de Broglie wavelength λ = 4.5×10−10 m h=6.626×10−34 J⋅s, As we the relationship,  de Broglie…

Q: An electron is moving with a speed of 5 x 106 m/s (± 2  x 10 -2m/s). Using this information,…

A: given ,  speed of the electron , v = 5×106 m/s (± 2×10-2 m/s) As we know ,  mass of the electron , m…

Q: The orbital radius of an electron in a hydrogen atom is 0.846 nm.What is its de Broglie wavelength?

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Q: Violet light of wavelength 400 nm ejects electrons with a maximum kinetic energy of 0.860 eV from…

A: The energy of radiation is, E=hcλE=4.41×10-153×108400×10-9E=3.11eV

Q: What is the work function

A: Explanation and answer is in next step .

Q: When ultraviolet light with a wavelength of 400.0 nm falls on a certain metal surface, the maximum…

A: When light of particular wavelength incident on metal surface, it will eject electrons from metal…

Q: An electron in a particular atom jumps from an orbit where the energy is higher than that of the…

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Q: At what velocity will an electron have a wavelength of 1.00 m?

A: Write the expression for the De Broglie equation, and solve for the velocity of the electron as…

Q: What is the  de Broglie wavelength for an electron  moving at 2.00 x 10^7 m/s?

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Q: What is the energy of an electron with wavelength 680 nm?

A: Form the De Broglie equation, the momentum of the electron can be calculated if its wavelength is…

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: A 1-kg cat acquires a speed of 100 m/s as it is sucked into the intake of a jet engine.What is its…

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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: The threshold frequency of silver is 0.967 × 1015 Hz. What is the work function of silver? Planck’s…

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Q: An electron is moving at 3.5 x 106 m/s.  A photon of what wavelength would have the same momentum?

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Q: In a typical electron microscope, the momentum of each electron is about 1.8 x 1022 kg-m/s. What is…

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Q: Light of wavelength 300.0 nm is incident on a metal that has a work function of 2.40 eV. What is the…

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

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Q: he distance between atoms in a crystal of NaCl is 418.5 nm. The crystal is being studied in a…

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Q: Violet light of wavelength 360 nm ejects electrons with a maximum kinetic energy of 0.89 eV from a…

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Q: The cutoff frequency of a specific metal is known to be 0.72x1015Hz. During a photociectric…

A: Power of a photon is defined as the energy E used per unit time t, that is , P=Et , where E=nhcλ is…

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

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