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1. A wet porous substance in the open air loses its moisture at the rate proportional to the moisture content. If a sheet hung in the wind loses half of its moisture during the first hour, when will it have los..

The development of the laser has opened many avenues of investigation and improved many others. The important characteristics that have contributed to its usefulness in these many areas are tile coherence, monochromaticity and great intensity of its radiation. (i) The smallest lasers used..

If Mean value theorem is applicable, solve the equation Show that one of the roots lie in the open interval (a, b). This verifies the Mean Value Theore..

Take a test tube and add about 10 ml of 10% glucose solution in it. Add a pinch of dry baker's yeast into the glucose solution and cover the surface of the liquid carefully with an oily layer to prevent the contact with air. Fix a holed cork into the mouth of the test tube and p..

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Tissues in Plants and Animals..

Transportation..

Plant Water Relations..

In soda water bottles, the gaseous carbon dioxide exists in equilibrium with the carbon dioxide dissolved in water. When the soda water bottle is opened, the carbon dioxide dissolved in it escapes out rapidly with fizz. This is because, the soda bottles are sealed after adding carbon diox..