refraction of light through plane surface

REFRACTION OF LIGHT THROUGH PLANE SURFACE
1) REFRACTION
2) OPTICAL MEDIUM
3) LAWS OF REFRACTION
4) REFRACTIVE INDEX
5) REFRACTION OF LIGHT THROUGH GLASS SLAB

1. RFEFRACTION OF LIGHT THROUGH PLANE SURFACE

2. REFRACTION OF LIGHT WHEN LIGHT PASSES FROM ONE MEDIUM TO ANOTHER MEDIUM IT CHANGES DIRECTION OR BENDING OF LIGHT RAY WHEN IT PASSES FROM ONE MEDIUM TO ANOTHER MEDIUM

3. Refraction of light through different medium 3 × 10 8 ms-¹ 2 × 10 8 ms-¹ 2 × 10 8 ms-¹ 3 × 10 8 ms-¹

4. REFRACTION RARER MEDIUM DENSER MEDIUM ∟ i ∟r

5. OPTICAL MEDIUM MEDIUM ARE OF TWO TYPES 1 OPTICALLY RARER MEDIUM 2 OPTICALLY DENSER MEDIUM

6. OPTICALLY RARER MEDIUM : SPEED OF LIGHT IS MORE EX : AIR OPTICALLY DENDER MEDIUM : SPEED OF LIGHT IS LESS EX : GLASS WATER OPTICAL MEDIUM 3 × 10 8 ms-¹ 2 × 10 8 ms-¹ 2.25 × 10 8 ms-¹

7. LIGHT TRAVELS FROM A RARER MEDIUM TO DENSER MEDIUM 3 × 10 8 ms-¹ 2 × 10 8 ms-¹

8. LIGHT TRAVELS FROM A DENSER MEDIUM TO RARER MEDIUM

9. TRANSMISSION OF LIGHT RAY FROM ONE MEDIUM TO ANOTHER MEDIUM ∟ i = 0 ∟r = 0

10. CAUSE OF REFRACTION : CHANGE IN SPEED OF LIGHT RAY FROM ONE MEDIUM TO ANOTHER MEDIUM RARER MEDIUM TO DENSER MEDIUM DENSER MEDIUM TO RARER MEDIUM 3 × 10 8 ms-¹ 3 × 10 8 ms-¹ 2 × 10 8 ms-¹ 2 × 10 8 ms-¹

11. Laws of refraction of light i ) The incident ray, the refracted ray and the normal to the interface of two transparent media at the point of incidence, all lie in the same plane. II) The ratio of the sine of angle of incidence to the sine of angle of refraction is a constant, for the light of a given colour and for the given pair of media.( This law is also known as Snell`s law of refraction.) Sin i /sin r = constant= µ(refractive index)

12. i ) The incident ray, the refracted ray and the normal to the interface of two transparent media at the point of incidence, all lie in the same plane.

13. The ratio of the sine of angle of incidence to the sine of angle of refraction is a constant, for the light of a given colour and for the given pair of media.( This law is also known as Snell`s law of refraction.) Sin i /sin r = constant = µ (or) n(refractive index) ∟ i = ∟ ∟r = ∟

14. Absolute refractive index Ratio of speed of light in air or vacuum to the speed of light in that medium μ = Speed of light in vacuum or air (c) --------------------------- Speed of light in medium (V) Ex: μ (glass) = speed of light in air / speed of light in glass refractive index has no units Speed of light in different media

15. SPEED OF LIGHT IN AIR 1.5 TIMES FASTER THAN GLASS Refrative index of glass is 1.5

16. 1) When the angle of incidence at the boundary of two media is zero ( i = 0) 2) When the refractive index of medium two is same as that of medium one. Conditions for light ray to pass undeviated on refraction

17. Speed changes Frequency remains same Wavelength changes Effect on speed (V), wavelength ( λ ) and frequency (f) due to refraction of light 3 × 10 8 ms-¹ 2 × 10 8 ms-¹

18. 1) Nature of the medium 2) Physical conditions such as temperatures 3) The color (or) wavelength of light FACTORS AFFECTING THE REFRACTIVE INDEX OF A MEDIUM

19. Optical density is more speed of light is less( refractive index more ) Optical density is less speed of light is more( refractive index less ) Optical density ( refractive index ) is inversely proportional to speed of light NATURE OF THE MEDIUM

20. Temp increases speed of light increases ( refractive index less ) Temp decreases speed of light decreases ( refractive index more ) Temperature is inversely proportional to refractive index PHYSICAL CONDITIONS SUCH AS TEMPERATURES

21. Wavelength increases speed of light increases( refractive index decreases ) Wavelength decreases speed of light decreases( refractive index increases ) Color or wavelength is inversely proportional to refractive index THE COLOR (OR) WAVELENGTH OF LIGHT

22. PRINCIPAL OF REVERSIBILITY OF THE PATH OF LIGHT

23. REFRACTION OF LIGHT THROUGH A RECTANGULAR GLASS BLOCK

24. REFRACTION OF LIGHT THROUGH A RECTANGULAR GLASS BLOCK

25. 1) The thickness of the glass block 2) The angle of incidence 3) The refractive index of glass block, and therefore also on the wavelength of light used. Factors affecting lateral displacement

26. IMAGES IN ANGLED PLANE MIRRORS

27. MULTIPLE IMAGES IN A THICK PLANE GLASS PLATE (OR) THICK MIRROR p o The image A 2 is the brightest image because it is due to the light suffering a strong first reflection at the silvered surface NO 100% 4%

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