Light

Question 1

What is reflection of light?

Answer 1

The change of direction of light by a mirror is known as reflection of light.

Question 2

What is image and object?

Answer 2

An image is the image formed behind the mirror and object is thing of which the image is formed.

Question 3

What is lateral inversion.

Answer 3

When images which form in a mirror show interchanged sides.

Question 4

Name the properties of some spherical mirrors.

Answer 4

Concave mirror- Erect, Inverted, Real, Virtual, diminished, Laterally inverted.

Convex Mirror-VED is a short form which is virtual erect and diminished.

Question 5

Name the properties of some lenses.

Answer 5

Concave lens- VED
which is virtual Erect and diminished

convex lens-Virtual, Erect, Diminished, Real, Inverted, Laterally inverted

Question 6

Name the colours of the rainbow.

Answer 6

Vibgyor

Question 7

What is the newtons disc.

Answer 7

The newtons disc is made up of 7 different colours (Vibgyor) and when it is spun fast enough the disc shows white colour.