5.6 Dispersion & Polarization Flashcards
1
Q
Which color has the largest index of refraction in the visible spectrum and which has the smallest index of refraction?
A
Violet has the largest and red has the smallest
2
Q
Dispersion
A
The separation of EMR into individual wavelengths
3
Q
Why does a prism disperse EMR?
A
Because the refractive index of an object is different for each wavelength causing each frequency to refract a different amount, thus spread out and seperate.
4
Q
Polarized waves
A
Vibrate in one plane only
5
Q
Reflection
A
Light reflected from shiny surfaces is often polarized. Polarized light causes glare which can be reduced by polarizing sunglasses.
6
Q
Scattering
A
Blue light that is scattered by the atmosphere is polarized. Only works for transverse waves
