Diffraction

Question 1

diffraction

Answer 1

the bending and spreading out of light waves as they pass through a narrow slit

Question 2

diffraction may produce

Answer 2

a large central light fringe surrounded by alternating light and dark fringes with the addition of a lens

Question 3

interference supports the

Answer 3

wave theory of light

Question 4

young’s double-slit experiment

Answer 4

shows the constructive and destructive interference of waves that occur as light passes through parallel slits, resulting in minima (dark fringes) and maxima (bright fringes) of intensity

Question 5

note:

Answer 5

bright fringes are halfway between dark fringes

Question 6

the central bright fringe (maximum) is twice as wide as the bright fringes on the sides, and as the slit becomes

Answer 6

narrower, the central maximum becomes wider.

Question 7

non refracted light travels in a

Answer 7

straight line

Question 8

as the slit is narrowed, the light

Answer 8

spreads out more

Question 9

interference

Answer 9

the process of the waves interacting with each other leading to the waves adding together

occurs as light waves reflect off the external surface of the film interfere with light waves reflecting off the internal surface of the film.

this would have a small degree of refraction

Question 10

diffraction gratings

Answer 10

consist of multiple slits arranged in patterns

Question 11

x ray diffraction

Answer 11

uses the bending of light rays to create a model of molecules