The image of the object formed by a lens is real, inverted and enlarged. What is the kind of lens?
Important Questions on Light
When is a rainbow formed?
Starting from the upper arc, write the names of all the colours in the rainbow in a proper order.
How can you prove that white light is composed of seven colours?
How is a virtual image formed in (a) plane mirror (b) convex mirror?
Give two differences between the image formed in a plane mirror and convex mirror, when the object is held close to the mirror.
How will you distinguish between a convex lens and a concave lens, without touching them?
Name the coloured arc formed in the sky after the rain. Which colour is on the top of the arc and which colour is at the base of the arc?
How can you prove that a convex lens converges the sunrays to a single point?
