Chapter 17.6- Circular Aperture diffraction Flashcards
1
Q
What happens to light waves that go though a circular aperture?
A
They spread out to generate a circular diffraction pattern
2
Q
Where is most of the intensity contained in a circular aperture diffraction?
A
In the circular central maxima, which is surrounded by a series of secondary bright fringes
3
Q
What does angle theta 1 tell us here
A
It locates the first minimum in the intensity for a circular aperture with diameter D
4
Q
How does the diameter of the diffraction pattern increase for circular aperture diffractions?
A
It increases with L (because the wave spreads out as it travels)
5
Q
How does the diameter of the diffraction pattern decrease for circular aperture diffractions?
A
By increasing D
