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Q9.    Differentiate between:

         (c) Rods and cones

Answers (1)

Rods

Cones

1. They are sensitive to dim light.

1. They are sensitive to bright light.

2. Rods contain the pigment rhodopsin.

2. Cones contain the pigment iodopsin.

3. They have no role to play in colour vision.

3. They are responsible for colour vision.

4. Only one kind of rods exist.

4. There are three kinds of cones-red, blue and green.

Posted by

Priyanka Kumari

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