1. Diffraction and your eye  Your pupil is an aperture that light has to pass through. It is larger in dim light, and smaller in bright light. Diffraction effects will be more likely to make what you see blurry in a) bright light b) dim light

2. Diffraction and wavelength  We saw the diffraction pattern of red light passing through a slit.  If green light passes through the same size slit, the diffraction pattern will be a) narrower b) wider c) the same width

3. Resolution  Observe the tiny writing on this page. You can probably see it clearly.  Now hold your thumb and forefinger close together, and look at the tiny writing through the small gap between your fingers, OR slightly close your eyes without squinting, so you have to look past your eyelashes.  Does the writing become (somewhat) blurry? yes, if opening is small enough  Mary had a little lamb

4. Resolution  A 16-cm-long microscope with a magnification of 500X has an objective lens with a focal length of 2.5 cm and a diameter of 1.0 cm. (Assume the objective lens limits the resolution.) 1.If you can normally see details down to a size of 0.01 mm, how small an object would you expect to be able to see with a magnification of 500X? 2X10 -8 m 2.What is the resolving power for the size of objects that can be seen clearly with this microscope? a little less than 2X10 -6 m 3.Can you see as small size objects as expected in question #1, or are they blurry due to diffraction? no, because object is smaller than RP