Refraction is the change in the direction of the wave passing from one medium to another.
The change in the direction of the propagation of any wave is due to the different speed at different points.
A far away object appears closer and a small object appears larger.
Take an example. Suppose, an object lies in water.
A far away object appears closer. The angle from which the rays of light reach the observer is larger than the angle that it makes in air.
This makes the angular size larger to the observer's eye which makes the object look larger relative what it looks in air. Similar but vice versa condition occurs in the case when a small object appears larger.
Approximately 2.7% of the world’s land is covered in housing
Stevie Wonder was born in 1950
Robin Williams was born in 1951
Brad Pitt was born in 1963
Tint is a color + white
example : pink is a tint because it is red + white
shade is a color + black
example : dark blue is a shade because it can be blue + black
D maya and Chinese guardians ,and so on
