Main advantage of cell size

Extra Credit worth 5 points:    What is wrong with this picture?

Which of the following is NOT a method for finding the focal length of a lens?

Given a light source beyond the focal point as shown, what happens to the image on the screen as the screen is moved from close to the lens to much farther out from the lens.

 What is wrong with this convex mirror diagram?

  With the planar mirror, how does the image height and image distance compare to the object’s height and image?

 What is wrong with this concave mirror diagram?

What was the calculated focal length for the half-circle glass object shown above?

True/False:  The light from a secondary rainbow is closer to you than the light from a primary rainbow.

In Part I Different Shapes, laser light was shown through a square prism as shown.  What happened when the prism was moved horizontally?  What happened when the prism was moved vertically?