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Shiva Shiva 5 months ago

You tell me in hindi

Yogita Ingle 5 months, 1 week ago

Huygen's Principle:

(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.

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Subham Kumar 5 months, 1 week ago

2019 physics class 12th
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Yogita Ingle 5 months, 2 weeks ago

Coulomb’s Law

Coulomb’s law states that Force exerted between two point charges:

  • Is inversely proportional to square of the distance between these charges and
  • Is directly proportional to product of magnitude of the two charges
  • Acts along the line joining the two point charges.
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Yogita Ingle 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.

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Aadarsh Borasi 4 months ago

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G L Badola 5 months, 1 week ago

The energy obtained from the conversion of nuclear mass is known as nuclear energy
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