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प्रश्न
Sand paper is a good example for smooth materials.
पर्याय
True
False
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उत्तर
Sand paper is a good example for smooth materials- False.
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संबंधित प्रश्न
Very Short Answer Type Question:
Which material is generally used for making pens? Wood, aluminum, plastic, cotton
Very Short Answer Type Question:
Name two objects which are made from opaque materials.
When can you say a material is waterproof material?
Sand settles down in the water.
Soft materials can be early compressed.
Smooth materials do not have ups and downs.
Materials which have ups and downs on their surface are called ______.
Name some examples for shiny materials?
Paheli prepared a blue coloured solution of copper sulphate in beaker A and placed an iron nail in it. Boojho prepared a yellowish green solution of ferrous sulphate in beaker B and placed a copper wire in it. What changes will they observe in the two beakers after an hour?
Some of the following statements are incorrect. Find the incorrect statements and correct them.
- The property of metals by virtue of which they can be drawn into wires is called ductility.
- Metals are good conductors of electricity but poor conductor of heat.
- Articles made up of metals produce ringing sound when struck hard.
- Oxides of non-metals and metals are acidic in nature.
- A less reactive metal displaces a more reactive metal from its salt solution in water.
