Question 1
Question 1 of 40
Question image for Q1
You can solve this MCQ to see its answer, but your attempt won't be logged unless you login
No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
7. Waves
7.4. Electromagnetic spectrum

recall that wavelengths in the range 400–700 nm in free space are visible to the human eye

8. Superposition
8.4. The diffraction grating

describe the use of a diffraction grating to determine the wavelength of light (the structure and use of the spectrometer are not included)