GATE Optical Physics: Interference: spatial and temporal coherence, dielectric films, Newton’s ring, multiple-beam interference, Michelson interferometer, Fabry-Perot interferometer and etalon – Previous Year Questions

2 GATE previous year questions on Interference: spatial and temporal coherence, dielectric films, Newton’s ring, multiple-beam interference, Michelson interferometer, Fabry-Perot interferometer and etalon (Optical Physics, Physics) with answers and explanations, from every paper.

1. GATE 2023 PH Q44 (2 marks, Multiple choice) – Young’s double slit experiment is performed using a beam of C60 (fullerene) molecules, each molecule being made up of 60 carbon atoms. When the slit…
2. GATE 2023 PH Q54 (2 marks, Multiple choice) – Different spectral lines of the Balmer series (transitions n→2, with n being the principal quantum number) fall one at a time on a Young’s double slit…