Question

6. Describe the nature of the image formed by a convex mirror.
7. Describe the nature of the image formed by a concave mirror when the object is at F.
8. What is dispersion of light?
Anwer 6,7,8​

Answer 1

1. The image formed in a convex mirror is always virtual and erect, whatever be the position of the object. In this section, let us look at the types of images formed by a convex mirror. When an object is placed at infinity, a virtual image is formed at the focus.
2. For a real object at f, no image is formed. The reflected rays are parallel and never converge. For a real object between f and the mirror, a virtual image is formed behind the mirror.
3. The process of splitting of white light into seven colours is called dispersion of light. Example: Formation of Rainbow during a cloudy day. Step 1: Sunlight passes through the raindrops.