Physics, 12.10.2019 17:10 twiddleturd

What can we say about the way in which the components of polarized light oscillate with respect to the direction of propagation?

Answers: 1

Show answers

Answers

Answer from: ndjfn

We can say that the components of ANY light oscillate perpendicular
to the direction of propagation ... left and right, up and down, upper left
and lower right, upper right and lower left, etc. ... any direction ACROSS
the direction of propagation, just not forward and backward.

If the light is polarized, then the Ɛ-field (electrostatic) component of
the wave can only oscillate in the polarized direction ... say, left and
right across the direction of propagation. (The magnetic component
is always perpendicular to the electrostatic component. So if the
polarizer is left/right, then the magnetic component is up/down.)

Any light that doesn't oscillate in the direction selected by the polarizer
gets absorbed in the polarizer, and doesn't come out the other side.
That's why when you pass light through a polarizer, it comes out dimmer
than it went in.

LASER light is always naturally polarized before it comes out of the diode
or whatever is generating it. That's another advantage of laser light.

Answer from: Quest

the answer is c.)

explanation:

Answer from: Quest

scattering of light by tiny particles in air to produce the colors we see on sky, is dependent on the following factors:

(i) wavelength of light

(ii) size of the scattering particle

(iii) distance traveled by light through the atmosphere.

according to rayleigh's law of scattering, the amount of scattering is inversely proportional to the fourth power of its wavelength. shorter the wavelength, greater is its scattering. hence violet/blue light is scattered more than red.

sun's light is a composite light ( visible light) with wavelengths in the range 400 nm (violet) to 700 nm (red). as sunlight passes through our atmosphere, the molecules of air scatter light according to their wavelengths. during sunrise and sunset, the sun's position is below the horizon. hence light from the sun travels a greater distance in the atmosphere when compared to its position a noon.

as sunlight enters the earth's atmosphere, blue light is scattered away and at the end of its journey in the sky, only red and orange wavelengths remain in the beam.

hence at sunrise and sunset, the sky appears reddish orange.

Another question on Physics

Physics, 22.06.2019 10:30

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?

Answers: 2

Answer

Physics, 22.06.2019 13:30

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?

Answers: 1

Answer

Physics, 22.06.2019 18:00

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.

Answers: 1

Answer

Physics, 22.06.2019 19:30

Aspacecraft that renters the earth’s atmosphere drastically slows down. the amount of kinetic energy the spacecraft has as it reenters the earths atmosphere

Answers: 2

Answer

You know the right answer?

What can we say about the way in which the components of polarized light oscillate with respect to t...

Questions