| Date | May 2013 | Marks available | 1 | Reference code | 13M.1.HL.TZ1.23 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 23 | Adapted from | N/A |
Question
M is a spherical mass situated far away from any other masses. Which of the following represents gravitational equipotential surfaces having constant potential difference between them?
Markscheme
C
Examiners report
Each diagram gives just three adjacent equipotentials. There is therefore no attempt made at completeness as may be found in a text book. Candidates should know that the two equipotentials further from the mass should have a greater distance between them than the pair closer to the mass. Hence only C can be correct.
