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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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