Differentiate the following: 1. Double convex & double concave lens (a. in terms of physical characteristics, b. as to what happens to light rays when it hit its surface) 2. Real images and virtual image 3. Farsightedness & nearsightedness (a. as to what appears clearer to the person, b. as to where the image is formed relative to the retina, c. as to the necessary corrective

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Applications Of Reflection Of Light

When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.

Sign Convention for Mirrors

A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.