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Diffraction for NEET: 11 solved questions

Real NEET paper questions on diffraction, part of wave optics. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2005 to 2020. No sign-in needed to read them.

What this topic asks

• Single slit diffraction — 7 questions
• Resolving power and limits of ray optics — 4 questions

All 11 questions with solutions

• In a double slit experiment, the two slits are 1 mm apart and the screen is placed 1 m away. A monochromatic… CBSE AIPMT 2015
• Assume that, light of wavelength 600 nm is coming from a star. The limit of resolution of telescope whose obj… NEET Sep. 2020
• Angular width of the central maxima in the Fraunhoffer diffraction for λ=6000 A is θ₀. When the same slit is… NEET Odisha 2019
• An astronomical refracting telescope will have large angular magnification and high angular resolution, when… NEET 2018
• The ratio of resolving powers of an optical microscope for two wavelengths λ₁=4000 A and λ₂=6000 A is NEET 2017
• In a diffraction pattern due to a single slit of width a, the first minimum is observed at an angle 30° when… NEET 2016
• A linear aperture whose width is 0.02 cm is placed immediately in front of a lens of focal length 60 cm. The… NEET 2016
• For a parallel beam of monochromatic light of wavelength λ, diffraction is produced by a single slit whose wi… CBSE AIPMT 2015
• At the first minimum adjacent to the central maximum of a single slit diffraction pattern, the phase differen… CBSE AIPMT 2015
• A beam of light of λ=600 nm from a distant source falls on a single slit 1 mm wide and the resulting diffract… CBSE AIPMT 2014
• The angular resolution of a 10 cm diameter telescope at a wavelength of 5000 A is of the order of CBSE AIPMT 2005