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)
· 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
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).
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