Question

2. Refraction of Light (Glass Chip Experiment)​

Answer 1

Answer:

Refraction occurs when light travels from one medium to another (ie. air to water, water to air). During the experiment, the light traveled from the image through the air, then through the glass cup into the water, and finally out of the glass cup and into the air once more before it reached our eyes.

Answer 2

Answer:

Explanation:

• The incident ray, the refracted ray and the normal to the interface of two  transparent media at the point of incidence, all lie in the same plane.
• The ratio of sine of angle of incidence to the sine of angle of refraction is a  constant, for the light of a given colour and for the given pair of media.
• This law is also known as Snell’s law of refraction. If i is the angle of incidence and  r is the angle of refraction
• The speed of light in a vacuum is 3.00 x 10 s m/s.
• When light travels through something else, such as glass, water or oil it travels at  a different speed.