In detail and show all steps
using a plane wave model, estimate the following quantities
...
In detail and show all steps
using a plane wave model, estimate the following quantities
a)the magnitude of the electric and magnetic fields in a 5 mw hene (\lambdao=633 nm) laser beam in air. assume the power is ~evenly distributed in a beam of diameter ~0.5 mm. b) the intensity (irradiance is becoming the more accepted term, actually) of a co2 (\lambdao=10.6 \mum) laser beam at a focal point that is causing air breakdown. use the low frequency breakdown strength of air, ~3 x 106 v/m.
c) the electric field magnitude in a nd-glass laser beam, with \lambdao=1.06 \mum, which is producing 5.2 kj pulses with a duration of 0.8 ns. assume the beam is focused to a spot with diameter of 0.2 mm (in air).
Answers: 1
Physics, 22.06.2019 04:30
The pressure increases by 1.0 x 104 n/m^2 for every meter of depth beneath the surface of the ocean. at what depth does the volume of a pyrex (bulk modulus 2.6 x 1010n/m^2) glass cube, 9.8 x 10^−2m on an edge at the ocean's surface, decrease by 7.5 x 10−10m^3? explain the formula beyond this point: p=1.0x10^4, b=2.6x10^10, l=9.8x10^−2, delta v=7.5x10^−10. at some point l needs to be cubed. why p is divided by delta v?
Answers: 2
Physics, 22.06.2019 17:20
You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?
Answers: 1
Physics, 22.06.2019 17:40
A15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°c to 175°c. what is the specific heat capacity of iron?
Answers: 1
Physics, 22.06.2019 22:00
Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.
Answers: 3
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