Draw a ray from the object to the lens that is parallel to the principal axis. Once through the lens, the ray should pass through the principal focus. Draw a ray which passes from the object through ...

Convex and concave lenses can both be used to correct defects of vision. The most commonly occurring defects of vision are ‘short sightedness’ and ‘long sightedness’. People who are ‘short sighted’ ...

In this article you will find all the NCERT intext and final exercise solutions for CBSE Class 10 Science Chapter 9, Light - Reflection and Refraction. All the class 10 Science NCERT solutions have ...