State three characteristics of the image formed by a convex lens when the object is close to it.

Write three characteristics of the image formed by a convex lens when the object is placed at a distance greater than twice the focal length of the convex lens.

What would your image look like if you stand close to a large concave mirror?

What would your image look like in a convex mirror?

What type of images can a convex lens make?

What type of image is always made by a concave lens?

How can you show that white light (say, sunlight) consists of seven colours?

Name the scientist who discovered that sunlight consists of seven colours.