On completion of this lesson, students should be able to:
The phenomenon of bending of light as it passes from one medium to another medium is called refraction of light. The refraction is caused due to change in velocity of light as it passes from one medium to another medium. This note contains different definitions regarding a lens and also shows how light bends when it passes through concave or convex lens.Learn More
Magnification of a lens is defined as the ratio of the height of the image to the height of the object. The images can be of two types. An image that can be obtained on a screen is called a real image. An image which cannot be obtained on a screen is called a virtual image.Learn More
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