G 10 Human Eye and colourful world

MATCH THE COLUMN A WITH COLUMN B

• Controls the size of pupil

• Cornea

• Allows the light

• Ciliary muscles

• Controls the amount of light

• Iris

• Adjust the focal length

• Pupil

• Light sensitive screen

• Retina

MATCH THE COLUMN A WITH COLUMN B

• Astigmatism

• Convex lens

• Hypermetropia

• Cylindrical lens

• Myopia

• Bifocal lens

• Presbiopia

• Concave lens

Match the following

• Atmospheric refraction

• Danger signals are red

• Longer wavelength

• Twinkling of stars

• Dispersion

• Blue colour of the sky

• Scattering of sunlight

• Rainbow

Match the following

• Deviated most

• Blue

• Scattered least

• Red

• Deviated least

• Violet

Match the following

• Does not contain cones and rods

• Eye lens

• Flexible

• Retina

• Cones and rods

• Iris

• Coloured pigments

• Blind Spot

• Crystaline double convex lens

• Ciliary muscle