Refractive Index, Snell's Law & Critical Angles - exam practice
Refractive Index, Snell's Law & Critical Angles
Question 1 of 3
A student is investigating the path light takes as it enters a glass block.
Complete the ray of light to show the light entering the glass block.
State the piece of equipment the student should use to measure the angle of incidence and the angle of refraction.
The student measures the angle of incidence to be 35°.
Which of the following could be the angle of refraction?
A student is investigating the properties of light.
They shine a thin beam of light at a plane mirror.
State what happens to the light when it is incident on the plane mirror.
The student measures the angles of incidence and reflection for her investigation.

The student has incorrectly measured one of the angles.
State which of the students results is anomalous.
Calculate the average angle of reflection for each angle of incidence.
State the law of reflection.
This question is about light.
The speed of light in a vacuum is
When light travels from a more optically dense medium to a less optically dense medium, light bends from the normal.
When light travels from a less optically dense medium to a more optically dense medium, light bends the normal.
When light travels from air into water, which of the following decreases?
A student is investigating the properties of a red laser. The laser has a wavelength of 6.50 x 10-7 m.
Calculate the frequency of the light.