: If the for work function for certain metal is 1.8 eV. (a) What is the stopping potential for electrons ejected from metal light of 4000 A.U. shines on the metal ? (b) What is the maimum speed of the ejected

Q: (a) Find the energy in eV of photons in radio waves from an FM station that has a 89 MHz broadcast…

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A: Light of intensity, I=1.00×103 W/m2 Area of mirror, A=2 m2 Energy reflected,  E=IA=1×103×2=2×103 J

Q: Calculate the momentum, and de Broglie wavelength of the electrons accelerated through a potential…

A: Given:potential differene,v=56 voltsE=1.92×10-17 JTo find:Momentum and de-Broglie wavelength of…

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A: Wavelength, w=1.28 A°

Q: Ex. 58: The threshold wavelength for a certain metal is 5000 ACalculate the maximum K.E. of the…

A: Given-λ0=5000 A0=5×10-7 mλ=2500 A0=2.5×10-7 mTo find-(K.E.)max=?

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A: de Broglie's wavelength

Q: The work function for potassium and caesium are 2.25 eV and 2.14 eV respectively, will the…

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A: |ψ>=13|V>+23|H> probability of finding photon in vertical polarization or in state |V>…

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A: Given:  Accelerating potential , V =25 kV = 25000 V  1 eV = 1.6 x 10-19 J plank's constant, h = 6.63…

Q: Light of wavelength 3000 A.U. falls on a metal surface having work function 2.3 eV. Calculate the…

A: Given Data The wavelength of light is:λ=3000 AU=4.48×1014 m The work function of surface is:ϕ0=2.3…

Q: Calculate the maximum fractional frequency shift for an incident photon of wavelength ? =1 Å…

A: From Compton effect, the expression for the frequency is:

Q: Ex. 40 : Calculate the longest wavelength of incident radiation, which will eject electrons from a…

A: To find-Longest wavelength (λ0)=?Given-Photoelectric work function (W0)=6 eVW0=6×1.6×10-19 J

Q: X-rays having an energy of 0.4 MeV undergo Compton scattering from a target as shown below. The…

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Q: Ex. 39 : Calculate the de Broglie wavelength of bullet moving with the speed 90 m/s and having a…

A: To find-De Broglie wavelength (λ)=?Given-Speed bullet (V)=90 m/sMass of bullet (m)=5 gm=5×10-3kg

Q: Ex. 4: The work function of tungsten is 4.50 eV. Calculate the speed of fastest electron ejected…

A: To find-Speed of fastest electronGiven-Work function (W0)=4.50 dV…

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Q: In a certain metal, the stopping potential is found to be 3.70 V.   When 235 nm light is incident on…

A: Given, stopping potential V0=3.70Vwavelength λ=235 nm

Q: eV 0.044, its frequency (in GHz) is: - If the phonon energy is

A: Given: The energy of the photon is 0.044 eV.