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Question
Which lens has more power a thick lens or a thin lens?
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Solution
A thick lens has more power than a thin lens. This is because a thick lens has a larger surface curvature. It has a short focal length and that is why it deviates the rays of light at a greater extent.
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RELATED QUESTIONS
What does sign of power (+ve or –ve) indicate?
You have two lenses A and B of focal lengths +10 cm and –10 cm, respectively. State the nature and power of each lens. Which of the two lenses will form a virtual and magnified image of an object placed 8 cm from the lens? Draw a ray diagram to justify your answer
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Focal length : metre : : power of lens : _______
Match the following:
| Column - I | Column - II | ||
| 1 | Retina | a | Path way of light |
| 2 | Pupil | b | Far point comes closer |
| 3 | Ciliary muscles | c | near point moves away |
| 4 | Myopia | d | Screen of the eye |
| 5 | Hypermetropia | e | Power of accommodation |
