During Einstein’s Photoelectric Experiment, what changes are observed when the frequency of the incident radiation is increased? a) The value of saturation current increases b) No effect c) The value of stopping potential increases d) The value of stopping potential decreases

Q: The photoelectric cut-off voltage in a certain experiments is 3 V. What is the maximum kinetic…

A: Given Data  Cut-off voltage V0 = 3 volts  Charge on Electron E = 1.6×10-19C  Max. Kinetic Energy KM…

Q: When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the maximum…

A: The photoelectric equation is given as                     where is the incident energy…

Q: What is the maximum amount by which the wavelength of an incident photon could change when it…

A: Atomic mass of the molecule, 44u =44×1.66×10-27=7.304×10-26kg

Q: A small space yacht, mass 9.15X10' kg, is passing hear a large star wnen Iits englnes suddenly fall.…

A: Concept used: Photons strike the surface at speed of light to propel and basic kinematics is used.

Q: Experiment on photoelectric effect produced data whose variation is shown in the below graph. Find…

A: So here the third question which is asked to find the energy level of doubly ionized Helium atom is…

Q: The following observations are made about the photoelectric effect : 1. No electrons are emitted…

A: For a given photosensitive material, there exists a certain minimum cut-off frequency of the…

Q: The wavelength of the yellow spectral emission line of sodium is 590 nm. At what kinetic energy…

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Q: What must be the velocity, in meters per second, of a beam of electrons if they are to display a de…

A: Wavelength, λ = 29.1 μmVelocity, v = ?

Q: A metal which has a threshold wavelength 2.3x1°m is irradiated by a light of wavelength 1.8x1°m.…

A: Given: The threshold wavelength is 2.3x10-9 m. The wavelength of the light is 1.8x10-9 m.

Q: In an electron microscope, through approximately how many volts of potential difference must…

A: Given: The DE Broglie wavelength (λ) = 1.0×10-10 m.

Q: a) Calculate the energies of the scattered photons for the angles given below Angle (degrees) 25 40…

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Q: A 900WX-ray tube operates at a DC potential difference of 30kV. Calculate the minimum wavelength of…

A: Given: The power of the X-ray tube is 900 W. The DC potential difference is 30 kV. Introduction:…

Q: The photoelectric cut-off voltage in a certain experiment is 1.5 V. What is the maximum kinetic…

A: Photoelectric cut-off voltage, Vo = 1.5 V

Q: piece of lead is hooked up to a circuit. When it is illuminated by a light, a stopping potential of…

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Q: 8. When a photoelectric surface is illuminated with light of wavelength 537 nm, the stopping…

A: We use the formula for photoelectric effect to get the required.

Q: Calculate the kinetic energy of a proton of the de Broglie wave length of 1 x 10 ^ -15 m Calculate…

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Q: Tanning salons use “safe” UV with a longer wavelength than some of the UV in sunlight. This “safe”…

A: UV rays are very harmful for the cell organ it damage the cell which cannot regenerate.

Q: ne: (masselectron = 9.11 X 10-31 kg) i) The maximum kinetic energy of the photoelectron. ii) The…

A: Given values:- Potential difference,(V)=3 Volt ----(1) Mass of electron,(me)=9.11 x 10-31 kg…

Q: 12. In a photoelectric experiment, a student obtained the following data: TT Frequency of Radiation…

A: Given information:

Q: The stopping potential of a given photoelectric device is depended on (a) intensity (b) frequency…

A: To find- Dependence of stopping potential=? Given- Stopping potential=Vs

Q: Number of emitted photons is 10^4 photons/s. Number of emitted electrons is 20 el/s. What is…

A: Given data, Number of photons, Np=104 photons/sec Number of electrons Ne=20 e/sec

Q: The wavelength of the photoelectric threshold for a metal is 1,13×10-10 m. Determine the wavelength…

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Q: The photoelectric cut-off voltage in a certain experiment is 1.5 V.What is the maximum kinetic…

A:

Q: Light strikes a metal surface, causing photoelectric emission. The stopping potential for the…

A:

Q: What is the maximum amount by which the wavelength of an incident photon could change when it…

A: Atomic mass of the molecule, m=53.0u=53.0×(1.66×10-27kg)=8.798×10-26kg

Q: the cutoff wavelength for a particular material is 510nm considering the photoelectric effect, what…

A: L0=510 nmL=402 nm let kinetic energy be K formula for K=> K=hcL-hcL0

Q: The radius of an a -particle moving in a circle in a constant magnetic field is half of the radius…

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Q: Light strikes a metal surface, causing photoelectric emission. The stopping potential for the…

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Q: A 2x10-12 m wavelength photon strikes a stationary electron and Compton scatters at and angle of 60…

A: c) Determine the speed of an electron. Determine the momentum of the electron.

Q: b) Elaborate why classical physics cannot explain the photoelectric phenomena.

A: The absence of a lag period, the independence of the kinetic energy of photoelectrons from the…

Q: 4) The minimum frequency for the photoelectric effect to occur in a given metal is 5 x 10¹4 Hz. a)…

A: Given: Minimum frequency (fο) = 5 × 1014HzTo find: a) Work function of the metal (W)             b)…

Q: d)     In a photoelectric experiment using a photocell, the graph of stopping potential Vs against…

A: The threshold frequency is the minimum frequency for which the ejection of the photo electrons takes…

Q: On a photosensitive material, when frequency of incident radiation increased by 30%, kinetic energy…

A: To find-Work function (ϕ)=?Given-(Initial) K.E.=E1=0.4 eV(Final) K.E.=E2=0.9 eV

Q: In Bohr's hydrogen model, the electrons move in a circular orbit around the proton and its momentum…

A: Bohr was the first man to remove the shortcomings of Rutherford's model of atom. He postulated that…

Q: 19. True or False: Maximum Kinetic Energy of emitted electrons is independent of frequency and…

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Q: What is the relation between the interaction parameter, ‘b’, and atomic radius, R, for the…

A: A

Q: 8. The graph shows the maximum KE of photoelectrons escaping a metal surface when irradiated with…

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Q: 7. If x-ray photons with intensity of 10 W/m2 of energy 70 keV travels through 3 cm of skeletal…

A: Given,I0=10 W/m2E=70 keVx=3cm

Q: The de Broglie wavelength of a proton (m= 1.62 e-27-kg) is 6.25 e -7-m, how fast is the proton…

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