The two convex lenses shown have different focusing powers.
Which is the more powerful lens?
How many times is the more powerful lens more powerful?
Light rays diverging from a point are incident on a convex lens, as shown in the diagram. Which of the other diagrams, (A), (B), (C), and (D), most correctly shows the directions of the rays that exit the lens?
At which of the points , , , , and shown in the diagram is the angle of refraction greatest?