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REFRACTION OF LIGHT AND LAWS OF REFRACTION CLASS -10 PHYSICS ( SCIENCE )


 PHYSICS

CLASS-10
CBSE/ICSE/BSEB BIHAR BOARD/ IB BOARD/ NTSE/ SCIENCE OLYMPIAD
LECTURE-10
SCIENCE
CHAPTER-10
REFRACTION OF LIGHT AND LAWS OF REFRACTION
SNELL'S LAW OF REFRACTION OF LIGHT :
Refraction of light :
1. Definition of refraction of light
2. Ray diagram
3. Cause of refraction of light
4. Refraction from rarer to denser medium
5. Refraction from denser to rarer medium
6. Incident ray
7. Refracted ray
8. Angle of incidence
9. Refracted angle
10. When refraction occurs
       (a) Velocity of light changes
       (b) Wave length of light changes
       (c) Phase of light remains constant
       (d) Frequency of light remains constant
Laws of refraction :
1. First law of refraction
2. Second law of refraction or Snell's law of refraction
Refractive index of a medium or Optical density of a medium :
1. Refractive index of a medium
2. Absolute refractive index of a medium
3.Refractive index in terms of angle of incidence and angle of refraction
4. Refractive index  of a medium in terms of speed of light
5. Refractive index in terms of wave length of light
6. Relation between refractive index and wave length of light .

BY SHIVANAND CHOUDHARY

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