DP Physics (last assessment 2024)
Question 18M.3.SL.TZ2.c
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.3.SL.TZ2.c |
| Level | SL | Paper | 3 | Time zone | TZ2 |
| Command term | Distinguish | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 2]
18M.3.SL.TZ2.c
The diagram represents a simple optical astronomical reflecting telescope with the path of some light rays shown.
Distinguish between this mounting and the Newtonian mounting.
[2]
Markscheme
Newtonian mount has
plane/not curved «secondary» mirror
«secondary» mirror at angle/45° to axis
eyepiece at side/at 90° to axis
mount shown is Cassegrain
OWTTE
Accept these marking points in diagram form
[2 marks]
