Class 10th Physics- refraction of light.
Refraction of Light: You might have observed when any object is immersed in water; it seems to appear bigger. Similarly, when a transparent paperweight is kept on a piece of paper, the letters written on the paper appear to be bigger. How would you explain such a phenomenon? What is the reason for the increase in the size of the object in the first case and letters in the second case? The entire phenomenon can be understood using the concept of refraction of light. Refraction of light is responsible for this optical effect. Let us see what does refraction of light mean? When light rays travel from one medium to another, the direction of propagation, as well as the speed of the light rays, alter.The bending of the path of light rays when it travels from one medium to another is known as refraction of light. Though the light bends when it travels from one medium from another, still it travels in a straight path in the given medium. Also, the extent of bending of light rays depend