DP Physics (first assessment 2025)
Question 23M.2.HL.TZ1.3ciii
| Date | May 2023 | Marks available | [Maximum mark: 2] | Reference code | 23M.2.HL.TZ1.3ciii |
| Level | HL | Paper | 2 | Time zone | TZ1 |
| Command term | State | Question number | iii | Adapted from | N/A |
iii.
[Maximum mark: 2]
23M.2.HL.TZ1.3ciii
(iii)
The two slits are replaced by many slits of the same separation. State one feature of the intensity pattern that will remain the same and one that will change.
Stays the same:
Changes:
[2]
Markscheme
Stays the same: Position/location of maxima/distance/separation between maxima «will be the same» / OWTTE ✓
Changes: Intensity/brightness/width/sharpness «of maxima will change»/ OWTTE ✓
Allow other phrasing for maxima (fringes, spots, etc).
