| Date | May 2018 | Marks available | 1 | Reference code | 18M.1.SL.TZ2.18 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 18 | Adapted from | N/A |
Question
A pair of slits in a double slit experiment are illuminated with monochromatic light of wavelength 480 nm. The slits are separated by 1.0 mm. What is the separation of the fringes when observed at a distance of 2.0 m from the slits?
A. 2.4 × 10–4 mm
B. 9.6 × 10–4 mm
C. 2.4 × 10–1 mm
D. 9.6 × 10–1 mm
Markscheme
D
Examiners report
[N/A]
Syllabus sections
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