Q. 30: A metal surface is illuminated by the photons of energy 5 eV and 2.5 2.5 eV respectively. The ratio of their wavelength is. (a) 1:3 (b) 1:2 (c) 1:4 (d) 2:1
Q: A ground-state H-atom (n = 1) first absorbs a photon with a wavelength of 95.0 nm and then emits a…
A: Initially n=1 Wavelengths for energy absorbed= 95nm Wavelength for energy emit = 434
Q: When UV light of wavelength 255 nmnm falls on a metal surface, the maximum kinetic energy of emitted…
A: Wavelength of the incident photon, Maximum kinetic energy of the emitted electron,
Q: Zinc has a work function (Φ) of 4.30 eV. What is the longest wavelength of light, in nm, that will…
A: Given Work function Φ = 4.30 eV
Q: An atom initially in an energy level with -6.43 eV absorbs a photon that has wavelength 850 nm. What…
A: Given, Initial energy level=-6.43 eV wavelength λ=850nm c=3×108m/s h=6.626×10-34 m2 kg/s
Q: A 633 nm helium-neon laser puts out 4.00 W of power with a beam 5.70 mm in diameter. The beam is…
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Q: A simple cubic crystal is cut so that the rows of atoms on its surface are separated by a distance…
A: Given: Distance,d=0.352nm=0.352×10-9mPotential Difference,V=175V A diffraction grating is a periodic…
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 allowed energies of a simple atom are 0.00 eV. 4.12 eV, and 6.44 eV. Part A What wavelengths…
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Q: For a hydrogen-like atom (the atom contains only one electron, like singly ionized He, doubly…
A: For Lithium Z=3. Hence, Energy in the ground state is:- E1=-13.6n2Z2E1=-13.612×32E1=-122.4 eV…
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: Three transitions shown as arrows, n=2 ---> n=1, n=3 -----> n=1, and n=4 ---> n=1, emit ultraviolet…
A: Energy of photon E = hv = hc/λ
Q: Light of wavelength 25 x 10 -7 m is incident on a material of work function 0.375 eV. Calculate the…
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Q: The emission spectrum of cesium contains two lines whose frequencies are (a) 3.45 ×× 1014 Hz and (b)…
A: If c be the speed of light in free space,ν be the frequency & λ be the wavelength then λ=cν…
Q: Material $ (eV) 1. The cutoff wavelength for the photoelectric effect in a certain metal is 254 nm.…
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Q: P.1 A particle of mass 1.00 x 1029 kg is in an infinite square well of length 5.00 nm. Find the…
A: The energy of the particle at infinite square well, En=n2h28 ma2 (This is the energy eigenvalue…
Q: Flat wave propagated with amplitude of ( A 1 e-ikz) in the direction of the axis Z this wave…
A: Given: Amplitude of flat wave A1=A1e-ikz Amplitude of spherical wave A2=1zAze-ikze-ikx2+y2/2z
Q: 22. Three laser beams have wavelengths 1 =400 nm, A2 = 600 nm, and A3 = 800 nm. The power of each…
A: Wavelength refers to the distance between identical points in adjacent cycles of a waveform signal…
Q: An ant undergoes three successive displacements: d₁ = 3.00 m, 20.0° south of east d₂ = 2.00 m, north…
A: Disclaimer:- “Since you have posted a question with multiple sub-parts, we will solve the first…
Q: Silicon films become better electrical conductors when illuminated by photons with energies of 1.14…
A: For photoconductivity in silicon film minimum energy required is 1.14 eV. So any light with energy…
Q: Light of wavelength
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Q: a) An eschellette grating has a groove density of 1000.0 grooves/mm. White light irradiates the…
A: **As per our company guidelines we are supposed to solve only one question (if there are multiple…
Q: When a certain metal is illuminated by light, photoelectrons are observed provided that the…
A: h = 6.626 × 10-34 J ∙ s,c = 3.00 × 108 m/s,1 eV = 1.60 × 10-19 J
Q: The intensity of a laser in free space is150mW / m². The corresponding amplitude of the V electric…
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Q: Photoelectric effect: Light of wavelength 400 nm falls on a metal surface having a work function…
A: The maximum kinetic energy of the photoelectrons emitted from the metal surface due to the…
Q: What is the wavelength, in nm, of a 1.74-eV photon? Normal format with 4 SF. Hint: 1 eV = 1.60×…
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Q: What is the energy in eV and wavelength in μm of a photon that, when absorbed by a hydrogen atom,…
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Q: 3. (a) If light is generated by 2 sources with wavelengths equal to 350 nm and 900 nm, will either…
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Q: When illuminating a metal work function W = 1.6 eV with a radiation of wavelength 700 nm., we…
A: We have a metal with work function W=1.6 eV which is illuminated with a radiation of wavelength…
Q: A photon with wavelength A = 0.25 nm scatters off an electron at and angle 0 = 75° from its %3D…
A: Given data, Wavelength of the incident photon = 0.25 nm Angle of scattering of the photon = 75o
Q: Question 15 of 22 When ultraviolet photons with wavelength A are incident on a metal surface with…
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Q: A metal surface is illuminated by light with a wavelength of 350 nm. The maximum kinetic energy of…
A: when the light illuminated photons all the electrons does not have same value of energy. in this…
Q: What is the energy in eV and wavelength in µm of a photon that, when absorbed by a hydrogen atom,…
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Q: A laser emits a pulse of light with energy 5.0*10^3 J. How do we determine the number of photons in…
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