Which polarization state of light is transmitted and absorbed (and why) in regular plastic polarizers (which are actually long strings of molecules , imbedded in iodine). Is it true that light with E fields parallel to the molecular strands create acceleration along that direction, which then creates re-radiation; so that the tr
Can someone explain what is the wave length for extremely low frequency radiation (ELF) and television waves. Please show how to work them out. thanks
One type of electromagnetic radiation has a frequency of 1019 kHz, another type has a wavelength of 2.12 10^-10 m, and another type of electromagnetic radiation has photons with energy equal to 4.08 10^-22 J/photon. Identify each type of electromagnetic radiation.
A soap film of index 1.34 has a region where it is 550 nm thick. Determine the vacuum wavelengths of the radiation that is not reflected when the film is illuminated from above with sunlight.
Please see attached, the first question I think I understand but want to confirm, the second i am getting confused over, please can you help me understand the calculus (product/chain rule) in the differentiation of the Planck function. I am not familiar to the Labert W function, and from my text books there is no mention of
In class my teacher explained how a pulsar in the crab nebula, NP 0532 emits both radio and optical pulses. A radio pulse is observed at 196.5 Mhz then she said calculate the corresponding wavelength, the energy of the photon, and the momentum? I didn't know how to do this.
Explain Brewster's angle physically with the characteristic properties of dipole radiation.
How long does it take the Sun to melt a block of ice at 0oC with an area of 1.20 m2 and thickness 1.03 cm? Assume that the Sun's rays make an angle of 33.5o with the normal to the area, and that the emissivity of ice is 0.0600.
Infrared photons cause a particular piece of metal to emit photoelectrons. Will photoelectrons be emitted when the metal is illuminated by visible light? If not, why? If yes, what properties of the emitted photoelectrons will be different from the case of the infrared illumination?
I know this is because methane absorbs red light but why greenish blue why not bluish green why not some other colour of the spectrum such as violet or orange is this because our eyes are more sensitive to certain colours or because these colours are mixtures with some red in them or another reason
1. Explain how the wave equation arises out of Maxwell's Equations. Relate your discussion to the following simulation of an electromagnetic wave: Electromagnetic wave 2. Explain the effect of the speed of light on electromagnetic waves. 3. Explain how you could find the frequency of
A light bulb has a filament of metal that has an emissivity of 0.3 and a surface area of 5.0 x 10^-5 m^2. It is heated to 2500 degrees Celsius in an environment with a temperature of 25 degrees Celsius. What is the power dissipated through radiation by the filament?
I would like to have someone show me step by step how to calculate the binding energy for deuterium and tritium.
Pocket ionization chambers are built in the form of an electrical capacitor. You know that capacitance is equal to a change in charge over a change in voltage, as C, where the capacitance, C, is in Farads (F), the voltage, V, is in volts (V) and the charge, Q, is in coulombs (C). You have a chamber that has a sensitive cylin
A collimated beam of 200 keV gamma radiation delivers an incident energy flux of 2 J m^-2 s^-1 to a lead shield 1 g cm^-2 thick. a. What is the incident photon flux in photons cm^-2 s^-1? b. What is the rate of energy absorption in the shield in both erg g^-1 s^-1, J kg^-1 s^-1 and Gy s^-1
What thickness of cadmium is required to absorb 50% of an incident beam of thermal neutrons? Given: σ_capture = 2550 barns, ρ=8.65 g cm^-3, MW=112.4.
You are a radiation scientist working for the space agency. A Mission Coordinator asks you to design shielding to prevent monoenergetic 10 MeV electrons from interacting with a cell culture that is to be flown on an upcoming space shuttle mission. The cell culture is covered with a 1 cm thick sheet of Lucite (density = 1.19 g/cm
1. Calculate the number of half-wavelengths in a ruby laser operating at a wavelength of 694.3 nm in air, given that the ruby rod, silvered on the ends, is exactly 10.0 cm long. The index of refraction of ruby is 1.69 a. 4.97 billion b. 9.94 billion c. 2.49 billion d. 1.00 billion 2. What is the energy o
A radar set picks up an aircraft in a time of 3.33 x 10 -3 seconds. How far away is the aircraft? Answer in powers of 10.
What are some of the advantages of putting telescopes, even those sensitive to optical wavelengths, like the Hubble Space Telescope, in space above the Earth's atmosphere?
Electromagnetic radiation from high-energy collisions between subatomic particles or from very hot gases must be observed from X? What is X?
I have come up with the hypothesis of the existence of a kinetic entity ring that could explain the physics behind Einstein's theory of relativity. I have posted my theory in my webpage at www.sc-innovation.com/entity.html. I am not a mathematician and so cannot come up with the equation for my kinetic entity ring. I hope someo
Physically, what does the 2 corresponded to in the balmer series equation? What does the n correspond to?