Advertisements
Advertisements
प्रश्न
Differentiate among opaque, translucent and transparent materials, giving one example of each.
Advertisements
उत्तर
| Opaque | Translucent | Transparent |
|
Opaque refers to a material that prevents an object from being seen at all. E.g. - wood, marble. |
Transculent is a material that allows an object to be viewed but not clearly. E.g. Butter paper, frosted glass. |
Transparent is a substance that allows an object to be seen plainly through it. E.g. Clean water, glass. |
APPEARS IN
संबंधित प्रश्न
Very Short Answer Type Question:
Select a lustrous material out of the following substances.
We cannot compress, cut or bend the rough materials easily.
Look at the pictures and identify the materials by which they are made of:
(paper, clay, glass, wood, plastic, metal rubber, wax
 |
|
 |
|
 |
| ____________ | ____________ | ____________ | ___________ | _____________ |
 |
 |
 |
 |
 |
| ____________ | ____________ | ____________ | ____________ | ____________ |
Sort the given objects as rough or smooth.
| Wet soap | Coir | Feather | Stone |
| ______ | ______ | ______ | ______ |
| Glass ball | Paperboard | Sand paper | Plastic spoon |
| ______ | ______ | ______ | ______ |
When can you say a material is waterproof material?
Sugar does not dissolve in water.
Choose the odd one:
Rubber band is an example of ______.
Differentiate hard and soft 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?
