State the nature of image formed when a convex lens is held a few centimetres away from an object.
Important Questions on Light
State the nature of image formed when a concave lens is held a few centimetres away from an object.
The image of the object formed by a lens is real, inverted and enlarged. What is the kind of lens?
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?
