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प्रश्न
Which of the two has a greater power: a lens of short focal length or a lens of large focal length?
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उत्तर
A lens with a shorter focal length will have more power because power varies inversely with focal length .
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संबंधित प्रश्न
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| 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 |
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