Band of seven colours is called -

• VIBGYOUR

• Spectrum

• Dispersion

• Reflection

Front balged part of the eye-ball is called -

• Cornea

• Pupil

• Choroid

• Retina

The amount of light entering the eye is controlled by

• eye lens

• iris

• cornea

• cilliary muscle

Light enters the eye through

• eye lens

• pupil

• cornea

• retina

....................... is a small opening in the cornea

• pupil

• iris

• cornea

• retina

We are able to see an object due to the presence of

• dark

• light

• reflection

• object

splitting of light into seven colours is called

A mirror has .................. surface .

• rough

• polished

• dark

• all of these

There are .................. laws of reflection .

• 1

• 2

• 3

• 4

In our eye .................. cells can sense colour .

• rod

• cone

• both rod and cone

• neither rod nor cone