| Date | May 2013 | Marks available | 1 | Reference code | 13M.1.HL.TZ1.15 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 15 | Adapted from | N/A |
Question
A parallel beam of monochromatic light of wavelength λ passes through a slit of width b and forms a diffraction pattern on a screen far from the slit. The angle at which the first diffraction minimum is formed is θ.
Which of the following changes in λ and b, carried out separately, will increase the value of θ?
Markscheme
D
Examiners report
[N/A]
Syllabus sections
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