waves have a frequency of the order of 1 to 100 MHz. What is the range of energies of these photons? adio ur bodies are continuously bombarded by these photons. Why are they not dangerous to us?
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- Note that a thermal neutron is a neutron whose most probable kinetic energy is ~ 0.025 eV. What is the de Broglie wavelength of a thermal neutron? (Hint: Neutrons in a nuclear reactor are thermalized in order to enhance their probability of fissioning 235U.)would appreicate an answer fot this: If a beam of photons, all with the same energy and momentum, collides with a metallic substance, some photons may experience a reduction in a wavelength. b speed. c energy. d mass.A 1eV photon’s wavelength is 120nm. Using ratio technique, calculate the wavelength of 5eV photon.
- Suppose photons are produced in a cathode ray tube (CRT) from electrons which are accelerated across a potential of 24.5 kV. Part (a) What is the maximum energy, in electron volts, of the photons? Part (b) What is the maximum frequency, in hertz, of these photons?This question relates to the practicality of searching for intelligent life in other solar systems by detecting their radio broadcasts (or aliens find us from ours). The closest stars are 4 light years away from us. How far away must you be from a 460 kHz radio station with power 50.0 kW for there to be only one photon per second per square meter? Assume that the photons spread out spherically. The area of a sphere is 4??24πr2. b) How many lightyears away is this?Suppose photons are produced in a cathode ray tube (CRT) from electrons which are accelerated across a potential of 22 kV. Energy in electron volts of the photons is 22000. what is the maximum frequency, in hertz, of these photons?