## Observations Rich Text Content

A. Single Slit)

-As the slit gets smaller, the resulting interference pattern gets smaller, closer together, and more intense (or more crisp might be a better way of
saying it)

B. Double Slit)

-The double slit experiments yields results that look fairly similar to the single slit at a distance, however instead of being solid yet fading bars of light,         the large bars are made of very small bars of interference of varying intensity.

-As the slits get farther apart, the individual small bars of light become bigger, farther apart, and less intense.

C. Diffraction Grating)

-The reason that diffraction grating works like this is because takes a large angle for light to constructively interfere when D is so small

-As the spacing of the grating goes up, the angle theta goes down, meaning the dot gets closer to the middle

DATA ANALYSIS:

The main equation that needs to be used is: First arranging it for , we get the result FINDING D:

From the rating of the diffraction grating (530 grooves per mm), we can obtain by, -----------------------------------------------------------------------------------------------------------------------------------------------

FINDING SIN(THETA):

However, finding is more involved.

We can construct a right triangle from measurements using a meter stick as such

principal maxima  --->._a_
\     |
\    |b
c \   |
\  |
\ |
LASER SOURCE

Where b=2.565m, and a=.93m, then c=2.725m

Given this, the sin( )= a/c

Therefore --------------------------------------------------------------------------------------------------------------

FINDING

Now with everything in place, rich_text