DP Physics (last assessment 2024)
Question 18M.3.SL.TZ2.8a.i
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.3.SL.TZ2.8a.i |
| Level | SL | Paper | 3 | Time zone | TZ2 |
| Command term | Determine | Question number | a.i | Adapted from | N/A |
a.i.
[Maximum mark: 2]
18M.3.SL.TZ2.8a.i
A ray diagram for a converging lens is shown. The object is labelled O and the image is labelled I.
Using the ray diagram,
(a.i)
determine the focal length of the lens.
[2]
Markscheme
constructs ray parallel to principal axis and then to image position
OR
u = 8 cm and v = 24 cm and lens formula
6 «cm»
eg: 
Allow answers in the range of 5.6 to 6.4 cm
[2 marks]
