Human Eye and the Colourful World
Very Short Questions and AnswersQ1: Name a light sensitive part of the eye where image of an object is formed.
Answer: Retina
Q2: Name the muscle responsible for bringing change in the focal length of the eye lens ?
Answer: Ciliary Muscles
Q3: Name one defect of vision which cannot be corrected by any type of spectacle lenses ?
Answer: Cataract
Q4: What is the nature of image formed on the retina of the eye ?
Answer: Real and inverted image.
Q5: Name the transparent membrane through which light enters the eye.
Answer: Cornea
Q6: What type of signals are generated & sent to the brain by light sensitive cells of retina?
Answer: Elctro-chemical Nerve signals are generated by rods and cones (photo sensitive cells of retina) and are sent to brain by optic nerve.