LIGHT WAVE AND RAY OPTICS

1. LIGHT :REFRACTION AND REFLECTION
LIGHT
PROPERTIES

2. LIGHT :REFRACTION AND REFLECTION
REFRACTION OF LIGHT

3. LIGHT :REFRACTION AND REFLECTION
QUANTITIES AFFECTED OR CHANGED DUE TO REFRACTION
1)SPEED OF LIGHT
2)DIRECTION OF LIGHT
3)WAVELENTH
4)FREQUENCY

4. LIGHT :REFRACTION AND REFLECTION
LAWS OF REFRACTION OF LIGHT

5. LIGHT :REFRACTION AND REFLECTION
REFRACTIVE INDEX

6. LIGHT :REFRACTION AND REFLECTION
FACTORS AFFECTING REFRACTIVE INDEX OF A MEDIUM
1)density of the medium
2)Temperature of medium
3)Wavelenght or colour of light

7. LIGHT :REFRACTION AND REFLECTION
PRINCIPLE OF REVERSIBILITY OF LIGHT

8. LIGHT :REFRACTION AND REFLECTION
LATERAL DISPLACEMENT(SHIFT) OF LIGHT

9. LIGHT :REFRACTION AND REFLECTION
PRISM

10. LIGHT :REFRACTION AND REFLECTION
REFRACTION OF LIGHT THROUGH A PRISM
DISPERSION OF LIGHT

11. LIGHT :REFRACTION AND REFLECTION
ANGLE OF DEVIATION

12. LIGHT :REFRACTION AND REFLECTION
Angle of Deviation Depends on
It must be noted that the angle of deviation changes with the changing surrounding condition. It
depends on:
The wavelength of light used
The angle of incidence
The refractive index of the material
The prism angle

13. LIGHT :REFRACTION AND REFLECTION
, Scattering of light
Scattering of Light is the phenomenon by which a beam of light is
redirected in many different directions when it interacts with a particle
available in the atmosphere.

14. LIGHT :REFRACTION AND REFLECTION
Scattering of depends on
Scattering of light is generally dependent upon the
wavelength of light as well as the size of the particle.

15. LIGHT :REFRACTION AND REFLECTION
Application of scattering of light in daily light
Blue colour of the sky: Out of the seven components present in
sunlight, blue colour is scattered the most by the particles present in the
atmosphere and hence, the sky appears blue.
Reddish colour of the sun during sunrise and sunset: At
sunrise or sunset, the sun is located near the horizon of the Earth. Hence, light has to
travel a long distance through the Earth’s atmosphere.
Danger signals in red colour:​ Red colour is scattered least by the
atmospheric particles and it can travel longer distance as compared to other colours

16. LIGHT :REFRACTION AND REFLECTION