1) 2023 S4 EOY P1 Q12

A girl with her eyes 1.50 m above the ground stands in front of a 2.50 m high wall, as shown in the diagram (not drawn to scale).

If a small mirror is to be hung on the wall, which position should it be placed so that the girl can see the small lamp behind her?

2) The diagram below shows the top view of a room PQRS which measures 6.0 m by 8.0 m.

An observer stands at the centre of the room with his back to RS.

In order for the observer to see the full width of the wall RS, what is the minimum width required of a plane mirror placed at eye level on the wall PQ?

3) In a game of hide and seek, Natalie can only see one of her friends hiding behind a wall via a reflection from a mirror. The diagram below shows the top views of Natalie, each of her friends' positions shown by a cross x, and the walls.

4) 2021 S3 EOY P1 Q05

Which of the following are the properties of an image formed from a plane mirror?

(I) the image is the same size as the object
(II) the image is upright
(III) the image is inverted

5) When we look at a red car, we are seeing it because...