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Wave optics 25. Q) What do you mean by resolving power of any optical instrument? Explain Rayleigh Criterion in this con...
29/09/2026

Wave optics 25.



Q) What do you mean by resolving power of any optical instrument? Explain Rayleigh Criterion in this context.

Wave Optics 24. Problem with solution.
27/09/2026

Wave Optics 24.

Problem with solution.

Wave Optics 23. Q) Derive an expression for intensity distribution in single slit Fraunhofer diffraction pattern and fi...
26/09/2026

Wave Optics 23.



Q) Derive an expression for intensity distribution in single slit Fraunhofer diffraction pattern and find the position of central maxima?

26/09/2026

Fraunhofer diffraction.


Wave Optics 22. Q) What is diffraction?Q) Why it occurs?
25/09/2026

Wave Optics 22.



Q) What is diffraction?
Q) Why it occurs?

Wave Optics 21.The Fabry–Pérot interferometer:It is an optical instrument that produces multiple-beam interference using...
24/09/2026

Wave Optics 21.

The Fabry–Pérot interferometer:
It is an optical instrument that produces multiple-beam interference using two closely spaced, parallel, partially reflecting surfaces.

Principle:

When light enters the gap between the two reflecting surfaces, it undergoes multiple reflections. The emerging beams interfere with one another. Depending on their phase difference, they produce bright and dark interference fringes.

Wave Optics 20.The Michelson Interferometer is an optical instrument used to produce and study interference of light. It...
24/09/2026

Wave Optics 20.

The Michelson Interferometer is an optical instrument used to produce and study interference of light. It works on the principle of division of amplitude, where a beam of light is split into two parts by a half-silvered mirror. The two beams travel along different paths, reflect from mirrors, and then recombine to form interference fringes.
It is widely used to measure wavelengths of light, small changes in distance, and refractive index with very high accuracy.

Wave Optics 19.Q) Find wavelength of monochromatic light used in Newton's Ring experiment.
23/09/2026

Wave Optics 19.

Q) Find wavelength of monochromatic light used in Newton's Ring experiment.

Wave Optics 18.Newton's Rings.Newton’s Rings is a classic experiment that demonstrates the interference of light by divi...
22/09/2026

Wave Optics 18.

Newton's Rings.

Newton’s Rings is a classic experiment that demonstrates the interference of light by division of amplitude. When a plano-convex lens is placed on a flat glass plate, a thin air film is formed between them. Light reflected from the two surfaces of this air film interferes to produce alternate bright and dark concentric circular rings.
The experiment is useful for studying the nature of interference and for determining quantities such as the wavelength of monochromatic light and the radius of curvature of a lens.

Wave Optics 17. Thickness derivation of non reflecting films.
20/09/2026

Wave Optics 17.

Thickness derivation of non reflecting films.

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