1. Describe howx-rays are usually generated, in particular the Bremsstrahlung process. 2. Why does Moseley laws law provide an evidence for the atomic theory of Bohr ?
Q: The Doppler effect phenomenon in atomic spectroscopy is the basis for: A. background noise…
A: In atomic spectroscopy, the width of the line are very important. narrow lines are prefer over dark…
Q: 1. Electron beam, accelerated with 40 kV voltage, collides with silicon. Explain what kind of x-ray…
A: Given that Acceleration voltage is 40 kV. Now we can find the cuttoff wavelength.
Q: According to Bohr's theory of the hydrogen atom an electron can occupy various energy states related…
A: Energy of electron in hydrogen atom is given by E=-13.6Z2n2eV
Q: Which of the following is not true of Bohr’s atomic model? a. The Coulomb force between the nucleus…
A: Postulates of Bohr's atomic model: Coulomb's force between electron and nucleus maintains the…
Q: Which scientist defined the areas of probability of where electrons can be found orbiting the…
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Q: The radius of a typical nucleus is about 5.0x10-15 m. Assume this to be the uncertainty in the…
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Q: 3. A metal has a threshold wavelength of 500 nm. a. What is the binding energy of the outer electron…
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Q: State following statements whether TRUE or FALSE. m. amit tu uow. ect depend Failure of…
A: The Rayleigh-Jeans law approves the results of the experiment for the low frequencies wave, but it…
Q: 1: An electron revolves around a nucleus with frequency of revolution 1015 Hz. If the radius of…
A: To Find: Magnetic moment (M) Given: Frequency of revolution n=1015 Hz Radius of orbit r=0.53…
Q: 4. Describe how the amplification of photons takes place in the ruby rod of the ruby laser.
A: LASER is short form of light amplification by stimulated emission of light. There are many types of…
Q: Q2. The following graphs show the x-ray spectrum for Tungsten and Molybdenum materials. 1- Why peaks…
A: 1. The peaks in the spectrum are called characteristic x-rays. When molybdenum is bombarding with…
Q: 1. Describe briefly the two conflicting theories of the structure of the atom. d's old ord
A: The objective of the question is to provide a brief description of the two conflicting theories of…
Q: 8. The hydrogen Balmer Hø spectral line is caused by radiation absorbed or emitted as an electron…
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Q: 2. According the binding energy curve. At large separation distance, the force is completely. .…
A: The binding energy is the energy that needed to separate nucleus into individual protons and…
Q: 42. Describe the Lyman, Ballmer and Paschen series
A: When an electron is excited to an outer orbit, it try to get to its old or lower orbits. Therefore…
Q: Describe what is meant by the "electron cloud" model of the atom it that arises from schrodinger's…
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Q: A laser with power output of 2.0mW at a wavelength of 400nm is projected onto a calcium metal. The…
A: The number of electrons ejected per second can be obtained as
Q: 3) From the classical physics point of view what was the problem with electron rotating around the…
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Q: After a hydrogen atom absorbs a visible photon which of these may occur? a. electrons jump up…
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Q: 1) The total number of the protons in the atom is its ____, while the sum of the protons and…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: be
A: Given that : The light emitted by hydrogen atoms is red because of its two characteristic lines, 1)…
Q: Describe the experimental evidence for matter waves by including an experiment in which the wave…
A: The Davisson-Germer Experiment revealed the electron's wave character, validating deBroglie's…
Q: A laser with power output of 2.0mW at a wavelength of 400nm is projected onto a calcium metal. The…
A:
Q: 10. An electron is in 3p state of a hydrogen atom. Find the energy (in eV) of the electron in this…
A: An electron in hydrogen atom revolving around the nucleus has energy which binds the electron. Using…
Q: 4. What do you mean by terms stimulated absorption, spontaneous emission and stimulated emission?…
A: It is required to discuss the given terms and needs to explain how a laser works.
Q: 2. List the assumptions of the Bohr theory of the hydrogen atom.
A: Answer:- Assumption of the Bohr theory of the hydrogen atom :- (1) An electron moves along the…
Q: 1. How does quantum mechanics describe an atom? 2. Write the electron configurations for zirconium…
A: ANS (1) Quantum theory describes matter as acting both as a particle and as a wave Electrons in…
Q: 17. The atomic energy level diagram accounts for A. the emission spectra of an atom B. the…
A: Energy level diagram
Q: 4. The critical potential of hydrogen is 13.05 eV. Calculate the wavelength of the radiations…
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Q: 2: An electron in an atom revolves around the nucleus in an orbit of radius 0.5 A. Calculate the…
A: The radius of orbit of the electron around the nucleus is given as, r=0.5 Ao (or) r=0.5×10-10 m The…
Q: 5. Using the Balmer formula calculate the wavelength of the photon when 1=5.
A: Balmer lines are spectral lines of hydrogen when the electron transitions from a higher level to the…
Q: For which one of the following, Bohr model is not valid?
A: Bohr model is applicable for only single electron species.
Q: 4. The radius of a Uranium-238 nucleus is approximately 7.8 × 10-15 m. Using Heisenberg's…
A: Given Data:Radius of U92238 nucleus (r) = 7.8×10-15 m. If the alpha particle is localized within…
Q: 1. In the Figure below a. Name all radiative processes shown with arrows. For example, free-free…
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Q: If electrons had spin quantum number s = 3/2, but physics was otherwise unchanged from the real…
A: According to the multiplicity rule number of particles in an orbital or in a spin system is given…
Q: 4. Using the Bohr model and neglecting interactions between the electrons, the allowed energy levels…
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Q: What is the energy of an electron with a wavelength of 10 pm?
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