Question text
25 A student reads the following in her physics book. ‘The incident angle is greater than 42° which is the critical angle for glass in air.’ What is the student reading about? A focal length of a glass lens B reflection in a plane mirror C refraction as light enters glass D total internal reflection
25 A student reads the following in her physics book.
‘The incident angle is greater than 42° which is the critical angle for glass in air.’
What is the student reading about?
A focal length of a glass lens
B reflection in a plane mirror
C refraction as light enters glass
D total internal reflection
Select your answer: