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Friday, 26 June 2015

Tree Plantation in School

PIPLE TREE BY SH. R S VASHISTHA

what is the value of a tree in its entire life in terms of money ?

More than Rs.35,00000/- ( FOREST DEPT. H. P. 2007)

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VAT VRAKSHA

GIFTED BY CLASS X II

TO CLASS IX

ON INT. FOREST DAY 2015

THE GUARDIANS OF THE ENVIRONMENT

PICS BY USM

Solar Lights in School

1.Advantages of solar light?
2. How it works ?
3. What are its components.?
4. What's the cost per watt ?
5.What is the future of solar energy in India.?

Refer to Akshay Urja magazine for more details..in the library..।।।।

Saturday, 20 June 2015

what are parahydrogen and orthohydrogen????

A molecule of dihydrogen contains two atoms, in which the nuclei of both the atoms are spinning. Depending upon the direction of the spin of the nuclei, the hydrogens are of two types:

Ortho hydrogen molecules are those in which the spins of both the nuclei are in the same direction. Molecules of hydrogen in which the spins of both the nuclei are in the opposite direction are called para hydrogen.

Courtesy ....Arjita mam....