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प्रश्न
Boojho found a bag containing the following materials
- Mirror
- Paper stained with oil
- Magnet
- Glass spectacles
Help Boojho in finding out the material(s) which is/are opaque.
विकल्प
(i) only
(iv) only
(i) and (iii)
(ii) and (iv)
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उत्तर
(i) and (iii)
Explanation:
Mirror is opaque since it is painted on one side. Magnet is opaque since it is made up of iron metal.
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Match the objects given in Column I with the materials given in Column II.
| COLUMN I | COLUMN II | ||
| (a) | Surgical instruments | (i) | Plastic |
| (b) | Newspaper | (ii) | Animal product |
| (c) | Electrical switches | (iii) | Steel |
| (d) | Wool | (iv) | Plant product |
