NOMECLATURE

Wood Root

This denotes the number of carbon atoms present in a given molecule. For e.g., C₁-Meth, C₂- Eth, C₃ - Prop, C₄- But.

Suffix

The suffix denotes the type of bonds or the functional group present in the carbon chain, e.g.

Type of bond	Functional group
'ane' (single bond)	'ol' for alcohols (-OH)
'ene' (double bond)	'al' for aldehydes (-CHO)
'yne' (triple bond)	'oic acid' for carboxylic acid (-COOH)

Prefix

This denotes the presence of other functional groups and their position.
For e.g., the following compound can be named as:

Word root: But (C₄) Prefix: 3, chloro
Suffix: -ol Name: 3-chloro butanol
Note carbon atoms are numbered from the side of the functional group (-OH in this case).

SIGN CONVENTIONS FOR REFLECTION OF SPHERICAL MIRRORS

MIRRORS	OBJECT DISTANCE (u)	DISTANCE OF REAL IMAGE	DISTANCE OF VIRTUAL IMAGE	FOCAL LENGTH (F)	HEIGHT OF OBJECT	HEIGHT OF REAL IMAGE	HEIGHT OF VIRTUAL IMAGE
CONVEX	NEGATIVE	IMAGE DOES NOT FORM	POSITIVE	POSITIVE	POSITIVE	IMAGE DOES  NOT FORM	POSITIVE
CONCAVE	NEGATIVE	NEGATIVE	POSITIVE	NEGATIVE	POSITIVE	NEGATIVE	POSITIVE

how do organisms reproduce...................

 Asexual reproduction is a mode of reproduction by which offspring arise from a single parent, and inherit the genes of that parent only; it is reproduction which almost always does not involvemeiosis, ploidy reduction, or fertilization. The offspring will be exact genetic copies of the parent, except in the specific case of automixis. A more stringent definition is agamogenesis which is reproduction without the fusion of gametes. Asexual reproduction is the primary form of reproduction for single-celled organisms such as the archaea, bacteria, and protists. Many plants andfungi reproduce asexually as well.



source:   http://www.youtube.com/watch?v=v6osswxstfk

RAY DIAGRAMS OF CONCAVE AND CONVEX MIRRORS

1. AT INFINITY
2.B/W FOCUS AND CENTRE OF CONVATURE
3.AT CENTRE OF CONVATURE
4.B/W CENTER OF CONVATURE AND FOCUS
5.AT INFINITY
6.B/W FOCUS AND POLE

HELLO FRIENDS,I HOPE U ALL ARE FINE.

                                  WE ARE BACK........WITH NEW THINKING,WITH NEW WORKING SPIRIT ETC.....N I HOPE THAT U WILL NOW AGAIN START WORKING WITH THE SAME HOPE AND WILL SCORE MUCH BETTER.....