Physics (AS & A Level) · Oct / Nov 2025 · Paper 12 · Question 29
The equation nλ = d sin θ can be used with a diffraction grating to find the wavelength of visible light. Which quantity is not correct for use in this equation?
- Ad — distance from grating to screen
- Bλ — wavelength of light
- Cn — order of intensity maximum
- Dθ — diffraction angle of intensity maximum
As printed in the paper
Show the answer
Correct answer: A. d — distance from grating to screen
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.