Igcse Model Questions Vol1 2025 Physics Question 8
Practice objective / multiple choice question 8 from the 2025 Igcse Model Questions Vol1 Physics examination.
A diffraction grating produces a first‑order maximum for light of wavelength \(480\ \text{nm}\) at an angle of \(20^{\circ}\) to the central maximum. The same grating produces a second‑order maximum for a different colour at an angle of \(30^{\circ}\). Determine the wavelength of this second colour (in nanometres, to the nearest nanometre).
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This is Igcse Model Questions Vol1 2025 Physics Question 8. It is one of the objective questions from the 2025 Igcse Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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