The ratio of sine of angle of incidence in one medium to sine of angle of refraction in other medium is

The ratio of sine of angle of incidence to the sine of angle of refraction is called…… .

The ratio of sine of angle of incidence to the sine of angle of refraction.

Fill in the blanks : The ratio of sine of angle of incidence to the sine of angle of refraction is called _____.

A ray of light is refracted from medium 1 to medium 2. Show that the ratio of the sine of the angle of incidence and the sine of the angle of refraction is equal to the ratio of velocity of light in medium 1 and that in medium 2.

Critical angle is that angle of incidence in the denser medium for which the angle of refraction in rarer medium is

Name the constant ratio of the sine of angle of incidence to the sine of angle of refraction.

What speciality is observed in the value of ratio of sine of the angle of incidence to the sine of the angle of refraction, sin I / sin r ?