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The Human Eye and the Colourful World
Science · CBSE Class 10 · English Medium · 20 questions and answers
Sample questions
- Q: What is the function of the human eye lens?
- A: It focuses light to form a sharp, real, inverted image on the retina.
- Q: What is the retina?
- A: A light-sensitive layer at the back of the eye where the image forms; it contains rods and cones.
- Q: What is the power of accommodation of the eye?
- A: The ability of the eye lens to change its focal length (curvature) to focus objects at different distances.
- Q: What is the least distance of distinct vision?
- A: The minimum distance at which the eye can see an object clearly without strain; about 25 cm for a normal eye.
- Q: What is the far point of a normal human eye?
- A: Infinity — the farthest point up to which the eye can see clearly.
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