Compare the above system with the probable systems in hilly/mountainous areas or plains or plateau regions.
In the plain regions, the water harvesting systems possess crescent- shaped earthen embankments, low, straight or concrete. Monsoon rain filled behind the structures only the large structure will hold the water for the long- range; or in hilly or mountainous regions canal irrigation system also called Kuls (water channels filled during the rain and carries it to various locations, i.e diverted into the man- made channels down the hillsides cause in the hilly area only terrace farming occurs, so there is no plain area) and ponds are used for the water harvesting or management; or in the plateau regions Cheruvu is used to store the runoff water.
You are given kerosene, turpentine and water. In which of these does the light travel fastest? Use the information given in Table 10.3.
| Material medium |
Refractive index |
Material medium |
Refractive index |
| Air | 1.0003 | Canada Balsam |
1.53 |
| Ice | 1.31 | ||
| Water | 1.33 | Rock salt | 1.54 |
| Alcohol | 1.36 | ||
| Kerosene | 1.44 | Carbon disulphide |
1.63 |
| Fused quartz |
1.46 | ||
| Turpentine oil |
1.47 | Ruby | 1.71 |
| Benzene | 1.50 | Sapphire | 1.77 |
| Crown glass |
1.52 | Diamond | 2.42 |
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Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 3 , Question 2: Compare the above system with the probable systems in hilly/mountainous areas or plains or plateau r....
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