Lakhasly

??Refractive index,(n) = Sini Sin of angle of incident Sin r Sin of angle of refraction ????REFRACTOMETRIC METHODS

REFRACTIVE INDEX

Refractometer

A

INTRODUCTION:- When a ray of light passes from one medium to another, the ray undergoes a change in direction, that is, it is bent or refracted.angle made by the incident ray with a with a perpendicula perpendicular at the point of incidence is termed the angle of incidence, i while r, made by the refracted ray is termed the angle of refraction.???????????????????????????????????????????????.??????????????????????????????????????

ال في ضوء مطلع بوا إلى ملاحقة الملك بنكه

او سانم به بر انتصافت. طة قام الانكبار

REFRACTOMETRIC METHODS

REFRACTIVE INDEX

Refractometer

A

INTRODUCTION:- When a ray of light passes from one medium to another, the ray undergoes a change in direction, that is, it is bent or refracted. The شمال ساقط مد مكار یحتی ن نقطة السقوط angle made by the incident ray with a with a perpendicula perpendicular at the point of incidence is termed the angle of incidence, i while r, made by the refracted ray is termed the angle of refraction.

The ratio of the sine of the angle of incidence to the sine of the angle of refraction, termed the index of refraction n (refractive index) is always a constant quantity for two given media for the same wavelength at the same temperature.

Refractive index,(n) = Sini Sin of angle of incident Sin r Sin of angle of refraction شعاع = V

(V, Velocity of light in air: V = Velocity of light in another medium)

The index of refraction is equal to the ratio of the velocity of light in two media.

Refraction of light

Air

Angle of incidence

(1)

Angle of refraction

glass