Briefly describe the inadequacies of classical physics and their remedies on the following: 1. Atomic theory 2. Photoelectric effect 3. Black body radiation
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Briefly describe the inadequacies of classical physics and their remedies on the following:
1. Atomic theory
2.
3. Black body radiation
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Solved in 2 steps
- Dimension of Planck's constant is similar to: 1. linear momentum 2. angular momentum 3. torque 4. velocity13. In this simplified schematic of a linac x-ray therapy unit, what is indicated A. Electron Source В. Тагдеt C. Microwave Source by the large arrow at the right? D. Radiolucent Window 14. In this energy spectrum, the peaks emanating (arrows) from the main energy distribution represent A. Characteristic B. Bremsstrahlung C. Isomeric D. Radioactive radiation. 100 Photonenergy (keV 150 X-Ray intensity www.9. Compare the electron, proton, and neutron a) in terms of mass, b) in terms of charge. c) Which of these particles are leptons and which are baryons. Application Questions 10. Use the table of Fundamental Particles and Interactions to answer the following a. What is the unified theory of the weak and electromagnetic interaction called? b. What particles experience the strong force? c. What particles mediate the weak interaction? Which of these is the most massive? 11. For the isotope "Sr find the following: i) the name of the element; ii) the atomic number; iii) the number of protons in the nucleus; iv) the number of electrons in an atom; v) the number of neutrons in the nucleus. 12. For the isotope 14C find the following: i) the name of the element; ii) the atomic number; iii) the number of protons in the nucleus; iv) the number of electrons in an atom; v) the number of neutrons in the nucleus. 13. If the isotope promethium-145 undergoes an alpha decay, find the resulting product.…
- Q8. What is gamma decay? Explain it with one example and diagram. Why all the excited states can not decay to all the states?Pls solve this question correctly in 5 min i will give u like for sure 1- What is the wavelength corresponding to a neutron of mass 1.67 × 10-27 Kg moving at 2360 m/s? 2- Calculate the number of photons having a wavelength of 10.0 m required to produce 1.0 kJ of energy? 3- Calculate the frequency and the energy of blue light that has a wavelength of 400 nm? 4- A photon has a frequency () of 2.68 x 106 Hz. Calculate its energy? 5- Calculate the energy and frequency of red light having a wavelength of 6.80 x 10-5 cm?12. What is the wavelength of the photons produced in electron-positron pair annihilation?
- Physics solve all part please. More than 60 years ago, future Nobel laureate Sheldon Glashow predicted that if an antineutrino — the antimatter answer to the nearly massless neutrino — collided with an electron, it could produce a cascade of other particles. The Glashow resonance phenomenon is hard to detect, in large part because the antineutrino needs about 1,000 times more energy than what's produced in the most powerful colliders on Earth. Let's compare this event to an ordinary baseball with a mass of 146 g. Please use three significant figures in your calculations. 1. What is the threshold antineutrino energy for the Glashow resonance in peta electronvolts (PeV)? Answer 6.3 2. What is this threshold energy in units of joules? Answer 0.001 Joules 3. Now consider a baseball with the same kinetic energy as that of the Glashow resonance. What speed in m/s would correspond to this energy? 4. What is this rate in units of inches/second?Why do we think tiny quantum ripples should have been present in the very early universe? Group of answer choices The annihilation of matter and antimatter particles caused tiny explosions that produced ripples in the radiation field. The principles of quantum mechanics require that the energy fields at any point in space be continually fluctuating. The shock wave of the Big Bang caused ripples that expanded outward with time. The energy released when the strong force froze out of the GUT force caused shock waves that produced ripples in the universe. The principles of quantum mechanics require that matter and antimatter particles formed from high-energy photons continuously eject energy into the universe causing the ripples.Q9
- 11. Draw the Feynman diagram for Compton scattering. 12. Draw the Feynman diagram for pair production, + → e+ + e¯.10. Use the table of Fundamental Particles and Interactions to answer the following a. What is the unified theory of the weak and electromagnetic interaction called? b. What particles experience the strong force? c. What particles mediate the weak interaction? Which of these is the most massive? 11. For the isotope 90Sr find the following: i) the name of the element; ii) the atomic number; iii) the number of protons in the nucleus; iv) the number of electrons in an atom; v) the number of neutrons in the nucleus. 12. For the isotope 14C find the following: i) the name of the element; ii) the atomic number; iii) the number of protons in the nucleus; iv) the number of electrons in an atom; v) the number of neutrons in the nucleus. 13. If the isotope promethium-145 undergoes an alpha decay, find the resulting product. 14. a) If the nucleus of the isotope lead-210 captures a neutron, what is the resulting element? b) If the product then emits an alpha particle, what is the resulting…Physics 6. particle in a box: Explain/define the terms that make up the expression for the total energy of this system (do not simply state the numerical values for each term, you do not need to explain Planck’s constant).