## How will you prove the laws of refraction experimentally?

Experimental Verification of Law of refraction

- Place a rectangular glass slab on the white sheet of paper fixed on a drawing board.
- Trace the boundary ABCD of the glass slab.
- Remove the glass slab and draw a normal N1N2 at O.
- Draw a straight line IO inclined at an angle say 300 with the normal.

## What are the four laws of refraction?

Laws of refraction state that: The incident ray, reflected ray and the normal, to the interface of any two given mediums; all lie in the same plane. The ratio of the sine of the angle of incidence and sine of the angle of refraction is constant.

**How do you test Snell’s law?**

The objective of this experiment is to verify the Snell’s law of refraction by tracking a laser ray passing through a rectangular slab of glass. Theory: Refraction is the abrupt change in the direction of light as it suddenly changes medium. The reason is the change in speed of light in different media.

**How many laws are there in refraction?**

Two laws

The two laws followed by a beam of light traversing through two media are: The incident ray refracted ray, and the normal to the interface of two media at the point of incidence all lie on the same plane.

### What is second law of refraction?

According to second Law of refraction, When incident ray, coming from one medium to the boundary of another medium, gets refracted, the ratio of the sine of angle of incidence i to the sine of angle of refraction r is always constant for a given wavelength of light.

### What is the formula of angle of refraction?

the sine of the angle of refraction is shown below. Observe that the constant of proportionality in this equation is 1.33 – the index of refraction value of water. Perhaps it’s just a coincidence….A Lesson from the Laboratory.

Angle of Incidence (degrees) | Angle of Refraction (degrees) |
---|---|

85.0 | 48.5 |