A physicist aligns a laser emitting light of wavelength 6.70 × 10-7 m normally incident on a diffraction grating with 5.00×105 lines per metre5.00 \times 10^5\text{ lines per metre}5.00×105 lines per metre.
How many interference maxima can be observed in total?
444
555
666
777
37 exam-style questions on AQA A Level Physics Refraction, diffraction and interference, covering Interference, Diffraction, and Refraction at a plane surface. Each one has a worked solution and a mark scheme showing where the marks go.