NIELIT University(Govt. of India Institution) B.Tech/ M.Tech
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6 Questions around this concept.
What is the minimum thickness of a thin film required for constructive interference in the reflected light from it? Given, the refractive index of the film wavelength of the light incident on the film
Laws of reflection:
Reflection of light : when ray of light strikes the boundary of two media such as air or glass, a part of light turned back into the same material . This phenomenon is known as "reflection of light".
There are two types of reflection :
It has been found that rays undergoing reflection follow two laws called the Laws of Reflection:
(i) The incident ray, the reflected ray, and the normal at the point of incidence lie in the same plane. The plane is called the
plane of incidence (or plane of reflection).
(ii) The angle of incidence (the angle between normal and the incident ray) and the angle of reflection (the angle between
the reflected ray and the normal) are equal, i.e.,
Normal Incidence: When a ray incident normally on a plane
Grazing Incidence: In case light strikes the reflecting surface tangentially
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