If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Light rays

Problem

In the image below we can see the tennis ball on the surface of the pool ball.
If we want to simulate this effect in a ray tracer, what rays do we use?
Choose 1 answer: