Posted by Saurabh Kashyap 5 months ago
Posted by G L Badola 5 months, 1 week ago
(i) Every point on a given wave front (called primary wave front) acts as a fresh source of new disturbance, called secondary wavelets which travel in all directions with the velocity of light in the medium.
(ii) The forward envelope of these secondary wavelets gives the new wave front at any instance.This is called secondary wave front.
Consider a plane wavefront AB incident on a surface PQ separating two media 1 and 2.
The medium 1 is a rarer medium of refractive index n1 in which light travels with a velocity C1 The medium 2 is a denser medium of refractive index n2 in which light travels with a velocity C2.
Posted by Farhaan Ansari 5 months, 2 weeks ago
Coulomb’s law states that Force exerted between two point charges:
Posted by Himani Arya 5 months, 3 weeks ago
Brewster’s law:- Brewster’s law states that at any particular angle of incidence, reflected ray is completely polarized; and the angle between reflected and refracted ray is 900.
Posted by Uvais Wali 6 months, 3 weeks ago
Posted by Monika Kanojiya 7 months, 2 weeks ago
Posted by Manmohan Singh 7 months, 2 weeks ago
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