Human Eye and Vision
Physics ⇒ Light and Optics
Human Eye and Vision starts at 8 and continues till grade 12.
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See sample questions for grade 10
A person can see objects clearly only when they are between 50 cm and 200 cm from his eye. What kind of defect of vision does he have?
A person is unable to distinguish between red and green colors. What is this defect called?
A person with a near point of 50 cm is advised to use spectacles. What is the power of the lens required to see clearly at 25 cm?
A person with myopia has a far point of 2 m. What is the power of the lens required to correct his vision?
Describe how spectacles help correct vision defects.
Explain the term 'blind spot' in the human eye.
Explain why a person with hypermetropia cannot see nearby objects clearly.
Explain why the image formed on the retina is inverted but we see objects upright.
Name the defect of vision in which a person cannot see distant objects clearly but can see nearby objects clearly.
Name the transparent front part of the eye that covers the iris, pupil, and anterior chamber.
Name the two types of photoreceptor cells present in the human retina.
State one cause of presbyopia.
State the function of the vitreous humour in the eye.
What is the far point of a normal human eye?
What is the function of the aqueous humour in the eye?
What is the function of the optic nerve?
What is the function of the retina in the human eye?
What is the main difference between rods and cones in the retina?
