What is the velocity of an electron emitted by lithium (work function = 2.90 e.v.) if light with a frequency of 4.77x1015 s-1 is absorbed?

Q: When a metal is illuminated with light of wavelength 420 nm, the stopping potential is 0.65 V; when…

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Q: The work function of a metal is 2.29 x 10-19 J. In a photoelectric effect experiment, calculate the…

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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: Light of frequency 0.790 × 10^15 Hz illuminates a sodium surface. The ejected photoelectrons are…

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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: In a photoelectric experiment it is found that a stopping potential of 1.00 V is needed to stop all…

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Q: Lithium is used in a photoelectric effect experiment. If its work function is 2.95 eV, what…

A: Work function of lithium (Wo) = 2.95 eV

Q: A relativistic electron has a de Broglie wavelength of 2.45 pm (1 pm = 10-¹2 m). Determine its…

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Q: Light of frequency 7.21 x 10“ Hz is incident on a metal surface. Electrons with a maximum speed of…

A: The concept behind this question is for threshold frequency for photoemission of electrons. We have…

Q: A photon with momentum 1.32×10-23 kg m/s² scatters off a free electron by an angle of 43 degrees.…

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Q: (a) Calculate the wavelength (in m) of a photon that has the same momentum as a proton moving at…

A: Given : v = 1.21% c = 0.0121(3 × 108) = 3.63 × 106 m/s

Q: A strange metallic rock is found and is being tested. Suppose that light with a frequency of 9.60 ✕…

A: Given that Incident frequency f = 9.60 X 1014 Hz Stopping potential V0 = 1.10 V

Q: What is the minimum frequency (in THz) of light needed to eject electrons off a metal with a work…

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Q: Calculate the kinetic energy (in eV) of a nonrelativistic neutron that has a de Broglie wavelength…

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

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Q: A metal with a work function of 4.2 eV is exposed to light in a photoelectric effect experiment.  If…

A: The problem can be solved by using the concepts of the Photoelectric effect. The photoelectric…

Q: What is the minimum frequency in (THz) of light needed to eject electrons off a metal with a work…

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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: Hydrogen H2 is a diatomic molecule composed of two hydrogen atoms. (Figure 1) is an energy diagram…

A: Given that: The velocity is v=19 km/s= 19×103  m/s The distance is x=0.05 nm The energy is…

Q: A physicist makes many measurements of the frequency of light emitted when a electron transitions…

A: Answer Given  Uncertainty in frequency measurement  ∆f = 17.4×106 Hz So the uncertainty in energy…

Q: s) The photoelectric effect can be used to generate power using a solar cell. We will use Aluminum…

A: Given: The work function of the aluminum cathode is ϕ = 4.26 eV The temperature of the sun is T =…

Q: If the threshold frequency of a metal is 0.5x1015 Hz and the wave length of the incident light is…

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Q: Light of frequency 7.21×1014 Hz is incident on a metal surface. Electrons with a maximum speed of…

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Q: During a certain experiment, the de Broglie wavelength of an electron is 400 nm = 4.0 ✕ 10−7 m,…

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Q: Q. 22 : The de-Broglie wavelength of waves associated with an a-particle of momentum 52.96 x 10-21…

A: To find-Wavelength (λ)=?Given data-p=52.96×10-21 kg.m/sh=6.63×10-34 J.s

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: The photoelectric threshold wavelength of a tungsten surface is 272nm. Calculate the maximum kinetic…

A: Given:frequency, f = 1.45×1015 Hzwavelength,λ0 = 272 nmSolution:We know that, the eqaution for work…

Q: The work function of caesium metal is 2.14 eV. When light of frequency 6 x 10^14 Hz is incident on…

A: Answer Given  Work function of caesium metal ϕ0 = 2.14 eV Frequency of light ν = 6×1014 Hz We have…

Q: For a certain metal, the threshold wavelength for the photoelectric effect is 719.0 nm. What is the…

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Q: Problem 4: A photon originally traveling along the x axis, with wavelength λ = 0.100 nm is incident…

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Q: In a Compton scattering experiment, an x-ray photon scatters through an angle of 22.6° from a free…

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Q: The energy conservation principle that applies to the photoelectric experiment is Ephoton =…

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Q: Thorium is radioactive, but it is also a metal and so it will emit electrons when illuminated by…

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Q: The Compton Effect is a fundamental phenomenon in physics that describes the change in wavelength of…

A: Given data:wavelength of the x-ray photon before scattering, scattering angle, change in wavelength…

Q: In a Compton scattering experiment, an x-ray photon scatters through an angle of 15.0° from a free…

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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: UV radiation having a wavelength of 84 nm falls on gold metal, to which electrons are bound by 4.82…

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Q: A mercury atom emits light at many wavelengths, two of which are at (1) 404.7 nm and (2) 435.8 nm.…

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Compton effect

The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.

Recoil Velocity

The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.