3.3 While sitting in front of a colour TV screen with a 25 kV picture tube potential you have an excellent chance of being irradiated with X-rays. (h = 6.6 x 10-34 Js, c = 3.0 x 10° m/s, 1 ev – 1.6 x 1019 J). Calculate the shortest wavelength (maximum energy) X- ray.
Q: What minimum speed must an electron have to excite the 492-nm wavelength blue emission line? The…
A: The objective of the question is to find the minimum speed an electron must have to excite the…
Q: A lead atom loses an electron from the L-shell(72.2 KeV). An electron from M-shell (84.1KeV)…
A: Given Energy of electron in L-shell (E1) =72.2 KeV Energy of electron in M-shell (E2) =84.1 KeV
Q: The work function for platinum is 6.35 eV. Ultraviolet light of wavelength 150 nm is incident on the…
A: Stopping potential is defined as the external potential that is required to make the photoelectron…
Q: What is the lowest energy level, in electronvolts (eV), of an electron in a one-dimensional atom…
A: The energy level of a one dimensional box is the lowest energy is for n=1.
Q: 5.2 The energy of an electron in a magnetic field of strength 1.5 T is 5.0 x 10-23 eV. Evaluate the…
A:
Q: a) When the 1st order diffraction observed for the Balmer series of Hydrogen atom’s Hbeta line…
A:
Q: An atom (not a hydrogen atom) absorbs a photon whose associated wavelength is Aab and then…
A:
Q: In a particular photoelectric experiment, a stopping potential of 2.1 V is measured when ultraviolet…
A: Concept used: Photoelectric effect is the process in which electron is ejected from surface of metal…
Q: The work function for indium is 4.12 eV. (d) If light of energy 7.14 eV is incident on indium, what…
A: Photoelectric effect is the phenomenon of emission of electrons from metals under the influence of…
Q: The photoelectric work function for a metal is 4.2 eV. If the stopping potential is 3V. Find the…
A: To find-λ0=?(K.E.)max=?Given-ϕ0=4.2 eV=4.2×1.6×10-19 JVs=3 Vc=3×108 m/sh=6.63×10-34 Jse=1.6×10-19 C
Q: The de-Broglie wavelength of a proton (charge = 1.6 x 10-19c, m=1.6 × 10-27 kg) accelerated through…
A: Given data: Charge (q) = 1.6×10-19 C Mass (m) = 1.6×10-27 kg Potential difference (V) = 1 kV = 1000…
Q: m² falls on a platinum surface of area 1.0 × 104 m² a. function 5.6 eV, 0.53% of the incident…
A: GIVEN: Intensity= 2.0W/m2 Surface area= 1.0* 10-4m-2 Work function= 5.6eV Here, we…
Q: To resolve an object in an electron microscope, the wavelength of the electrons must be close to the…
A: The question is asking us to determine the kinetic energy of an electron in an electron microscope…
Q: 10:36 Thu 8 Aug Cancel Markup の The photoelectric effect is the emission of electrons from a metal…
A: ANSWER : ( a ) Key Experimental Observations Demonstrating Light QuantizationEinstein's 1905 paper…
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: Potassium and gold cathodes are used in a photoelectric-effect expériment. For each cathode, find:…
A:
Q: 3.14. What are the orbital radii and electron velocities in the first three levels of the Bohr model…
A: In the Bohr model of the hydrogen atom, the electron orbits the nucleus in discrete energy levels,…
Q: b) Choose the best explanation from among the following:I. The de Broglie wavelength in the nth…
A:
Q: To resolve an object in an electron microscope, the wavelength of the electrons must be close to the…
A:
Q: Light of wavelength 576 nm is incident on a target metal that has a work function of 1.85 eV. What…
A: solution is given by
Q: Q2:- Find the de Broglie wavelength of (a) a 8-MeV proton; (b) a 55-GeV electron; (c) ar electron…
A:
Q: 1.2. When a photoelectric cell with a copper cathode is illuminated by a Hg arc lamp, with…
A:
Q: Johnny Jumper's favorite trick is to step out of his 16thstory window and fall 50.0 m into a pool. A…
A: De Broglie's hypothesis states that any matter particles with a linear momentum can behave like a…
Q: A photon of energy 2.8 MeV is annihilated near a heavy nucleus producing an electron-positron pair.…
A: We’ll answer the second question since the exact one wasn’t specified. Please submit a new question…
Q: Calculate the minimum-wavelength x-ray that can be produced when a target is struck by an electron…
A:
Q: If the cutoff frequency of the lead metal is 9000 THz and the emitted photoelectrons have kinetic…
A: cutoff frequency (f) of lead metal= 9000 THz
Q: A) In what part of the EM spectrum would a photon of energy 4.9 ✕ 10−17 J be found? microwave…
A: The objective of the question is to find out the part of the electromagnetic (EM) spectrum where a…
Q: An electron microscope passes 1.00-pm-wavelength electrons through a circular aperture 2.00 µm in…
A: Wavelength is λ=1.00 pm= 1.00×10-12 m Diameter of the circular aperture is, D = 2.00 μm=2.00×10-6 m…
Q: Light is incident on the surface of metallic nickel, from which 5.0 eV are required to remove an…
A: Given Data: Work potential of Nickel surface ϕ=5 eV Stopping potential S0=4.5 volts Power of Light…
Q: A beam of monochromatic (single energy) photons are incident on a slab of aluminum with thickness of…
A: Solution: Calculate the intensity of the beam after the first slab using the following relation.…
Q: An electron microscope uses electrons accelerated by a voltage of 50 kV. Determine the de-Broglie…
A: Given: The voltage is V=50 kV. The expression to calculate the energy of electron is given by,…
Q: An electron was ejected from the surface of cesium metal with a speed of 6.74*10^5 m/s.Given that…
A: Given data :- speed of ejected electron v =6.74 × 105 ms threshold energy (work function of the…
Q: A particular metal has a work function of 3.2 eV. What is the maximum energy of electrons ejected…
A:
Q: Compute the potential difference through which an electron must be
A: We know, hcλ=V......................................(1) ANS:D 9.93*10^-16
Step by step
Solved in 2 steps with 1 images