Why Sini Sinr is constant?

If a ray of light is passing through a glass slab through its normal, then sin i = 0 and thus the constant of refraction is not mantained. But as the definition of snell’s law suggests that this law is applicable to light travelling obliquely.

When light is passed from denser medium to rarer medium then Sini Sinr?

When light travels from a denser medium to a rarer medium, it bends away from the normal, as illustrated to the left. This behavior follows from Snell’s Law. As you saw before, the larger angle must be in the medium having the lower index of refraction.

When a ray of light travels from denser to rarer medium What is the critical angle?

Critical angle for a light ray travelling from denser to rarer medium is defined as the angle of incidence at which the angle of refraction is 90°.

How do you verify experimentally that Sini Sinr is a constant?

Observation: If we calculate the ratio of the sine of angle of incidence and sine of angle of reflection than it will come out to be constant. Result: Ratio of sine of angle of incidence and angle of refraction is constant.

How is Sini Sinr calculated?

sini /sinr = c1/c2 = 1n2 From Snell’s law, the angle of refraction can be calculated if the refractive index of the two materials is known. The refractive index can be calculated from the sin of the angles of the light measured in the materials.

When light travels from denser to rarer medium What is the relationship between R and I?

The relative refractive index of denser medium with respect to the rarer medium will be greater than 1, when light travels from rarer to a denser medium.

When light travels from one rarer medium to denser medium what happens to its speed wavelength and frequency state the answer with reason?

When waves travel from one medium to another the frequency never changes. As waves travel into the denser medium, they slow down and wavelength decreases. Part of the wave travels faster for longer causing the wave to turn. The wave is slower but the wavelength is shorter meaning frequency remains the same.

Why light travels slower in a denser medium?

When light enters a denser medium (like from air to glass) the speed and wavelength of the light wave decrease while the frequency stays the same. Light moves slower through denser media because more particles get in its way.

When light travels from an optically denser medium to a rarer medium Why does the critical angle?

and each colour of light is associated with a specific wavelength, so as the wavelength of light increases critical angle increases.

When light travels from an optically denser to an optically rarer medium?

As the light goes from an optically denser to an optically rarer medium, it bends away from the normal. Hence, the angle of refraction is greater than the angle of incidence. For optically denser medium, the refractive index n1​ is greater than that of the rarer medium n2​.