Class X NCERT Solution, MCQ's Study Notes, Q & A Chapter 11 – Human Eyes and Colorful world Science 1. What is the role of pupil in a human eye? [CBSE Exam Paper 2011] Ans: The pupil controls the amount of light entering the eye. 2. What is the range of vision of a normal human eye? [CBSE Exam Paper 2011] Ans: 25 cm to infinity 3. Name the part of the human eye that helps in changing the focal length of the eye lens. [CBSE Exam Paper 2011] Ans: Ciliary muscles 4. Which coloured component bends the least during the dispersion of white light through prism? [CBSE Exam Paper 2011] Ans: R ed colour deviates the least and violet colour the most. 5. Name the part of the eye [CBSE Exam Paper 2011] (a) that controls the amount of light entering into the eye. (b) that has real, inverted image of the object formed on it. Ans: The pupil , Retina 6. A person is advised ...
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