Question 1
FA student investigates how light travels through a rectangular glass block.
The Figure shows the path of a ray of light as it enters the block. Three possible paths for the ray after it leaves the block are labelled P, Q and R.
Figure
a.[1]
Name the process that makes the ray change direction at X.
b.[1]
Describe how the direction of the ray changes as it enters the glass block at X.
c.[1]
Which ray, P, Q or R, shows the path of the light after it leaves the glass block?
d.[1]
Describe how the direction of the ray changes as it leaves the glass block at Y.
e.[1]
The student shines a second ray at the block along the dashed line at X.
Describe the path of this ray through the block.
f.[2]
The student wants to measure the angles accurately later.
Describe how she can record the path of the ray on the paper under the block.
5.3 Wave interactions Questions
51 exam-style questions on OCR GCSE Physics 5.3 Wave interactions, covering 5.3.1 Wavelength and how substances affect waves, 5.3.2 Wave velocity in different substances, 5.3.3 Convex and concave lenses, 5.3.4 Ray diagrams for reflection and refraction, and 5.3.5 Colour, absorption and reflection. Each one has a worked solution and a mark scheme showing where the marks go.