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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.
पर्याय
(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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संबंधित प्रश्न
Very Short Answer Type Question:
Is oil soluble in water?
Long Answer Type Question:
‘Grouping of objects helps the shopkeeper.’ Justify the statement.
We cannot compress, cut or bend the rough materials easily.
Write whether the given materials are hard or soft.
| Wood | Eraser | Cotton |
| ______ | ______ | ______ |
When can you say a material is waterproof material?
A piece of wood floats on water.
Sugar does not dissolve in water.
Choose the odd one:
Soft materials can be early compressed.
Match the substances in Column A with their applications given in Column B.
|
Column A |
Column B |
| (a) oxygen | (i) for making crackers |
| (b) copper | (ii) for disinfecting water |
| (c) sulphur | (iii) all living beings inhale during breathing |
| (d) iron | (iv) for making electric wires |
| (e) chlorine | (v) for making rails |
