What are the two photo-receptor cells present in the eye?
A
Rods and pupil
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B
Cornea and cones
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C
Cones and pupil
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D
Rods and cones
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Solution
The correct option is D Rods and cones Our retina consists of two types of photo-receptor cells called rods and cones. They have different uses. Cones help us in colour identification whereas rods enable us to see in low-light conditions.