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प्रश्न
Which one of the following materials cannot be used to make a lens?
पर्याय
Water
Glass
Plastic
Clay
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उत्तर
Clay
Explanation:
since it is opaque and does not let light pass through it.
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संबंधित प्रश्न
Calculate the focal length of a corrective lens having power +2.5 D.
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| Column - I | Column - II | ||
| 1 | Retina | a | Path way of light |
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| 4 | Myopia | d | Screen of the eye |
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