human eye and colourful World

As shown above figure what is angle D

• Angle of deviation

• Angle of incidence

• Angle of reflection

• Angle of emergency

Myopia also called as

• Far sightedness

• Near sightednessi

The slitting of light into component colours is called

• Dispersion

• Scattering

• Reflections

• Refraction

That twinkling of star is due to

• Atmospheric refraction

• Reflections

• Dispersion

• Scattering

Far a young adult with a normal vision it is about

• 23cm

• 24cm

• 25cm

• 9cm

The eye losses its power of accommodation at old age

• Presbyopia

• Myopia

• Hypermetropia

The human eye forms the image of an object at its

• Cornea

• Iris

• Pupil

• Retina

The human eye can focus on object at different distances by adjusting the focal length of eye lenses this is due to

• Presbyopia

• Accommodation

• Nearsightedness

• Farsightedness

The change in focal length of an eye lens is caused by the action of the

• Pupil

• Retina

• Culinary muscle

• Iris

Colour ful part of human eye

• Carnia

• Iris

• Retina

• Pupil