Igcse Model Questions Vol1 2020 Physics Question 40
Practice objective / multiple choice question 40 from the 2020 Igcse Model Questions Vol1 Physics examination.
A diffraction grating has 5000 lines per centimetre. Monochromatic light is incident on the grating. The second‑order maximum is observed at an angle of \(30^{\circ}\).\n(a) Calculate the wavelength of the light.\n(b) If the grating is rotated so that the first‑order maximum appears at the same angle \(30^{\circ}\), what is the wavelength of the new light?
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About This Question
This is Igcse Model Questions Vol1 2020 Physics Question 40. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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