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: Which of the following changes would result in a higher required stopping voltage during a…

A: Let the work function of a material = w Let the incident energy = E Let the kinetic energy = K.E Let…

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: Give an example of an application that involves the absorption of X-rays. Describe what happens on a…

A: X-rays are produced by bombarding a heavy metal target with high energy electrons. Choice of heavy…

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: 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: F/x 1014 Hz 8.0

A: Given: From the graph the frequency f of incident radiation on a metal surface  Frequency (νmax):…

Q: Photoelectric work function of a photo- sensitive material is 3 x 10-19 J. Calculate its threshold…

A: To find-Threshold wavelength (λ0)=?Given-W=3×10-19 J

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 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: An electron is accelerated through a potential difference of 9.00kV Determine a) the speed of the…

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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: If a proton and an electron have the same kinetic energy, which has the longer de Broglie…

A: Given: A proton and an electron has same kinetic energy.

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

A:

Q: Why does light of a certain frequency need to be used to produce a current in the photoelectric…

A: When ultraviolet light or X-rays are made to fall on any metal surface (such as zinc plate), free…

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

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

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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: It is observed that light of 410 nm just begins to What is the classical emit photoelectrons.…

A: We have to select the correct option regarding photoelectric effect.

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

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Q: In a photoelectric experiments, a graph of the light frequency f is plotted against the maximum…

A: It is required to calculate the wavelength and the velocity for the given frequency.

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: 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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