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CBSE Class 11-science Answered

Why is ploughing of fields essential?
Asked by Topperlearning User | 04 Aug, 2014, 04:58: PM
answered-by-expert Expert Answer

Ploughing of fields is essential as it breaks the fine capillaries in the soil, thereby saving the loss of excess water which rises in the capillaries and evaporates.

Answered by | 04 Aug, 2014, 06:58: PM

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CBSE 11-science - Physics
What is capillarity? Give some applications of capillarity.
Asked by Topperlearning User | 01 Aug, 2014, 04:57: PM
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CBSE 11-science - Physics
Determine the height of purple liquid in a U tube. Density of purple liquid is 0.7 g/cc , density of blue liquid = 1.4 g/cc , density of mercury = 13.6 g/cc.
Asked by Topperlearning User | 01 Aug, 2014, 05:05: PM
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CBSE 11-science - Physics
What is the radius of new bubble formed if two bubbles of radii 2 cm and 1.5 cm coalesce?
Asked by Topperlearning User | 04 Aug, 2014, 03:58: PM
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CBSE 11-science - Physics
Consider a bubble of radius 1.5 cm on which surface tension is 3.9 x 10-2 Nm-1. Calculate the pressure inside it.
Asked by Topperlearning User | 04 Aug, 2014, 04:02: PM
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CBSE 11-science - Physics
Suppose there are two bubbles B1 and B2. The excess pressure inside B1 is twice the excess pressure in B2. Find the ratio between the volumes of the two bubbles.
Asked by Topperlearning User | 04 Aug, 2014, 04:17: PM
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CBSE 11-science - Physics
Draw the graph of the excess pressure inside a soap bubble when it is blown slowly.
Asked by Topperlearning User | 04 Aug, 2014, 04:22: PM
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CBSE 11-science - Physics
Dirty or greasy stains cannot be cleared by washing with water and we need detergents. Why?
Asked by Topperlearning User | 04 Aug, 2014, 04:25: PM
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CBSE 11-science - Physics
Why is ploughing of fields essential?
Asked by Topperlearning User | 04 Aug, 2014, 04:58: PM
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CBSE 11-science - Physics
State the factors on which the angle of contact depends.
Asked by Topperlearning User | 04 Aug, 2014, 05:03: PM
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CBSE 11-science - Physics
<div>How do trees draw water form the ground?</div>
Asked by Bhaskar | 26 Mar, 2016, 06:28: PM
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