The questions in this quiz are suitable for GCSE physics students who are studying reflection of waves and refraction of waves. If you struggled with the quiz, don't panic - we've got you!

Science presenter Jon Chase explains total internal reflection. He demonstrates how total internal reflection can make a coin disappear inside a glass of water and bend a laser beam. The second ...

“The physics is incorrect,” says Kevin Pimbblet ... they are so close to the light source that only one eye shows the reflection. But the technique could be a part of a battery of tests ...