diffraction Limit

Question 1

Wave length of source _____________ forms a diffraction pattern

Answer 1

Equal to or larger than width of the slit

Question 2

Path difference of a single slit

Answer 2

asin(theta)=m(lambda)

Only forms a diffraction pattern if lambda is greater or equal to a

Question 3

The greater the number of slits, the ________ the size of the maxima

Answer 3

Smaller

Question 4

How do you find the intensity of the slits with different numbers

Answer 4

Square the number of slits

Ex. 3 slits, 3^2= 9 x the intensity

Question 5

How do you determine the number of minimas that are present in a multi slit screen?

Answer 5

D-2

Ex: 5 slits are on a screen, 5-2=3 secondary minima

Question 6

Is rayleighs criterion not resolved, just resolved, or wel resolved?

Answer 6

Just resolved, where the 1st min overlaps with the primary maxima

Question 7

____________ states that the two point resolution limit occurs when the first minimum (the boundary of Airy’s disc) of one diffraction pattern coincides with the center maximum of the other diffraction limited pattern

Answer 7

Rayleigh’s criterion

Question 8

The ability of an optical system to resolve two points or objects

Answer 8

Resolution

Question 9

The diffraction pattern formed on a distant screen resulting from a uniformly illuminated circular aperture has a bright region in the center known as ________

Answer 9

Airy’s disk

Question 10

The central disk plus the surrounding series of concentric bright rings is called the _________

Answer 10

Airy pattern

Question 11

What is the equation for Rayleigh’s criterion

Answer 11

(Min theta)=1.22(lambda)/d