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Question
Which of the following colours can not be distinguished, if the person is colour blind?
Which of the following colours can not be distinguished, if the person is colour blind?
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Solution
The correct option is A Red and green
The retina has two types of light-sensitive cells called as rods and cones. Cones work in daylight and are responsible for colour discrimination. There are three types of cone cells. One type of cone perceives blue light, another perceives green and the third perceives red. When we look at an object, light enters our eye and stimulates the cone cells. Our brain then interprets the signals from the cones cells so that we can see the colour of the object. Colour blindness can not distinguish certain shades of red and green. Colour blindness occurs when one or more of the cone types are faulty or defective.
Thus, the correct answer is option A.
The retina has two types of light-sensitive cells called as rods and cones. Cones work in daylight and are responsible for colour discrimination. There are three types of cone cells. One type of cone perceives blue light, another perceives green and the third perceives red. When we look at an object, light enters our eye and stimulates the cone cells. Our brain then interprets the signals from the cones cells so that we can see the colour of the object. Colour blindness can not distinguish certain shades of red and green. Colour blindness occurs when one or more of the cone types are faulty or defective.
Thus, the correct answer is option A.
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