A few of the statements below are true, while the others are false. Put a tick (✓) in the box beside each statement to indicate true or false.
On Fig. 9.1, draw to illustrate how the prism acts on the light as it travels through the prism.
Explain why the prism separates white light into different colours.
State the speed of light in a vacuum.
Calculate the time for light to go from the Sun to the Earth. The Earth is $1.5 \times 10^8\,\text{km}$ from the Sun.
Calculate the electric current in this volume of space. A charge of $180\,\text{C}$ passes through a small volume of space in $2.0\,\text{minutes}$.
Complete the table in Fig. 9.2 for an alpha-particle, a proton and a gamma ray.