A photon with an energy of 2.28 eV is barely capable of causing a photoelectric effect when it strikes a sodium plate. Suppose the photon is instead absorbed by hydrogen. Find the minimum n for a hydrogen atom that can be ionized by such a photon
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A: Given, work function of Sodium is, W = 3.2×10-19 J velocity of electron is, v =8×105 m/s So maximum…
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Q: A 480 nm laser beam is incident on two different metallic surfaces, one made of sodium (Na), the…
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A: The frequency of the light is .The work function of the metal is .
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A: Given,
Q: with an energy of 5.3 × 10-19 J strikes an electron in a metal. The binding energy of this metal is…
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Q: The attatched equation describes the cross section for the photoionization of a hydrogen atom in…
A: The attatched equation describes the cross section for the photoionization of a hydrogen atom in…
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Q: inetic energy of 2.70 eV. (a) What is the work function of the metal? 5 ev (b) If the photon energy…
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Q: light source is used in a photoelectric effect experiment to determine the work function of a…
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Q: Two light sources are used in a photoelectric experiment to determine the work function of a…
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Q: The binding energy of sodium is 2.28 eV. Calculate the number of photoelectrons ejected from a 1.00…
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Q: = 546.1 nm) is used, a stopping potential of 0.874 V reduces the ph I on this measurement, what is…
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Q: Ultraviolet radiation of wavelength 121 nm is used to irradiate a sample of potassium metal. The…
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Q: he work function of lithium is W0 = 2.93 eV. (a) What is the maximum wavelength of incident light…
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Q: Question 2: Deduce the work function for sodium from Fig. Q2. The intersection of the straight line…
A: The objective of the question is to calculate the work function for sodium and to determine if the…
Q: A 630-nm light falls on a photoelectric surface and electrons with the maximum kinetic energy of 0.2…
A: here, wavelength of incident light(λ) = 630 nm =630 ×10-9m maximum kinetic energy(KEmax) =0.2ev =…
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- What is the maximum velocity of a photoelectron emitted from a surface with work function 6.2 eV when illuminated by 181-nm ultraviolet light? ( m electron = 9.11 × 10 −31 kg, h = 6.63 × 10 −34 J ⋅s, 1 eV = 1.60 × 10 −19 J, and 1 nm = 10 −9 m)A 480 nm laser beam is incident on two different metallic surfaces, one made of sodium (Na), the other of magnesium (Mg). If the respective work functions of these metals are 2.66 eV and 3.66 eV, will electrons be ejected by the 480 nm photons? If so, calculate the maximum KE the photoelectrons can have.The mathematical equation for studying the photoelectric effect is hν = W + 1/2 meu2 where ν is the frequency of light shining on the metal; W is the energy needed to remove an electron from the metal; and me and u are the mass and speed of the ejected electron, respectively. In an experiment, a student found that a maximum wavelength of 351 nm is needed to just dislodge electrons from a metal surface. Calculate the velocity (in m/s) of an ejected electron when the student employed light with a wavelength of 283 nm.
- UV radiation having a wavelength of 146 nm falls on gold metal, to which electrons are bound by 4.82 eV. What is the maximum velocity of the ejected photoelectrons? No need to use relativistic formulas in this case.Data for the photoelectric effect of silver are given in the table. Frequency of incident radiation (1015 ?−1)(1015 s−1) Kinetic energy of ejected electrons (10−19 ?)(10−19 J) 2.00 5.90 2.50 9.21 3.00 12.52 3.50 15.84 4.00 19.15 Using these data, find the experimentally determined value of Planck's constant, ℎh , and the threshold frequency, ?0ν0 , for silver.A photon has an energy E and wavelength l before scattering from a free electron. After scattering through a 135° angle, the photon’s wavelength has increased by 10.0%. Find the initial wavelength and energy of the photon.