by using the prism spectrometer,we can easily find the refractive index of the material.
The refractive index of kerosene at 20°C is approximately 1.448.
I cannot answer this question without knowing the numbers for the glass
The ratio of the velocity of light in a vacuum to that in a medium is the refractive index of a lens. It is represented by n = c/v, where n = refractive index , v = characteristic speed and c = speed of light 299792 kmsec-1 or 1 Planck speed.
I think the property referred to on the question is the refractive index. Refractive index (n) is defined as the ratio of the speed of light in a vacuum (c) to the speed of light in the given material (v).n = c/vSo for glass, with a refractive index of 1.5, the speed of light in the material would be 200,000,000 m/s compared to speed of light in a vacuum of 300,000,000 m/s.
No, refractive index(RI) of air is more than that of vaccum. Infact RI of any medium is more than vaccum. RI of vaccum is 1. RI of any medium = c/v where c is speed of light in vaccum v is speed if light in medium whose RI with respect to vaccum is found. It is known that speed of light is maximum in vaccum so v < c, and RI > 1.
The refractive index of hydrochloric acid varies with its concentration. For a 36% concentrated solution of hydrochloric acid, the refractive index is around 1.395 at 20°C.
The refractive index of kerosene at 20°C is approximately 1.448.
The refractive index of a solvent can be calculated by measuring the speed of light in that solvent and comparing it to the speed of light in a vacuum. It can also be determined using an Abbe refractometer, which measures the angle at which light bends when passing through the solvent. The formula for refractive index is n = c/v, where n is the refractive index, c is the speed of light in a vacuum, and v is the speed of light in the given solvent.
Refractive Index(i) Refractive index of a medium is that characteristic which decides speed of light in it.(ii) It is a scalar, unit less and dimensionless quantity.(iii) Absolute refractive index :When light travels from vacuum to any transparent medium then refractive index of medium w.r.t. vacuum is called it's absolute refractive index i.e. vacuumµmedium = c/vAbsolute refractive indices for glass, water and diamond are respectively µg = 3/2 = 1.5, µw = 4/3 = 1.33 and µD = 12/5 = 2.4(iv) Relative refractive index :When light travels from medium (1) to medium (2) then refractive index of medium (2) w.r.t. medium (1) is called it's relative refractive index i.e. 1µ2 = µ2/µ1 = v1/v2 (where v1 and v2 are the speed of light in medium 1 and 2 respectively).(v) When we say refractive index we mean absolute refractive index.(vi) The minimum value of absolute refractive index is 1. For air it is very near to 1. ( 1.003)
In any medium whose refractive index is 1.52, the speed of light is c/1.52 = 0.658 c =197,231,880 meters per second (rounded)
If the refractive index is k then the speed of light is c/k metres per second where c is the speed of light in vacuum (approx 299,792,458 m/s).
· The refractive indices of watero Water (0° C) 1.33346Water (100° C) 1.31766Water (20° C) 1.33283· The refractive indices of immersion oil is 1.518· The refractive indices of air is 1.000277· The refractive indices of glass is 1.518
I cannot answer this question without knowing the numbers for the glass
The value of refractive index is different for each type of plastic.
The speed of light in a medium is given by the formula v = c/n, where c is the speed of light in vacuum and n is the refractive index of the medium. Thus, in carbon disulphide with a refractive index of 1.628, the speed of light would be approximately 184,266 km/s.
The ratio of the velocity of light in a vacuum to that in a medium is the refractive index of a lens. It is represented by n = c/v, where n = refractive index , v = characteristic speed and c = speed of light 299792 kmsec-1 or 1 Planck speed.
Light travels at its maximum velocity c in a vacuum. In a medium with a certain refractive index, it is slowed down and travels with velocity c/index