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CBSE Notes 2011-2012

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sheikh madiha's picture
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Joined: 30/10/2015
how to get answers of mcqs

hi, I am new here. Can anybody tell me hw can i get the ans of mcqs of chapter eye and the colourful world (physics) class 10 which have been submitted by mrs gulathi.

m@diha

Aryaman Thakur's picture
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Joined: 23/08/2015
Can anyone tell me why force

Can anyone tell me why force of limiting friction greater than kinetic friction ?

riyaghumaria123@gmail.com's picture
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Joined: 03/02/2015
Electron affinity is defined
  1. Electron affinity is defined as the change in energy (in kJ/mole) of a neutral atom (in the gaseous phase) when an electron is added to the atom to form a negative ion. In other words, the neutral atom's likelihood of gaining an electron.
RiYa
ampm2ampm@gmail.com's picture
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Joined: 04/01/2015
what is electron affiniy

Hii friends please help me to unnderstand electron affinity

riyaghumaria123@gmail.com's picture
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science

hlw guy's plz.... help mee too in understanding nationalism in europe

RiYa
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science

hlw guy's plz.... help mee too in understanding nationalism in europe

RiYa
ampm2ampm@gmail.com's picture
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Which part of this chapter is

Which part of this chapter is difficult for you

Nitisha Arya's picture
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Joined: 30/11/2012
Hii, can anyone tell me, how

Hii, can anyone tell me, how to use this site?

:-)

husanmeet khurmi's picture
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Joined: 05/10/2012
hi .....plz help

i am a medical student of 12 & wanna questions with answers of chapter organisms & population i wanna to know which type of question would be come in mine bord exam from this chapter

husanmeet

husanmeet khurmi's picture
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hlo

i am a student of 12 medical & wanna notes & important questions of chemistry...... would anyone help me plz...

husanmeet

Hashirq73's picture
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Joined: 25/11/2012
Ya shure

mail me at hashirq73@ovi.com i will shurly mail you some which i have now!!

abay's picture
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Joined: 11/06/2012
MCQ Questions................

Someone just tell me and solve this question..............

Ques..  100% pure ethyl alcohol is called..........

(a) rectified spirit.

(b) absolute alcohol.

(c) power alcohol.

(d) denatured alcohol.

rockers

Sheikh Adnan's picture
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Joined: 22/02/2015
Absolute alcohol

Absolute alcohol

abhishek mani's picture
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Joined: 21/10/2012
its called absolute alcohal.

its called absolute alcohal.@ abay

aarshgandhi932000@gmail.com's picture
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Joined: 09/06/2012
could anyone tell me how to

could anyone tell me how to submit the mcq answers

never take tension and study because it affects your studies

mr.ritikgupta@gmail.com's picture
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Joined: 09/06/2012
Help!!!

Hey..!!! Pls... Help me.....I am not able to understand Polynomials.....Pls advice how to understand this chapter of maths of Xth.....

Ritik Gupta
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Problem in polynomials....!!!!

Q1. If alpha and beeta are the zeroes of the quadratic polynomials f(x)= x2 -4x +3,find the value of alpha4 beeta2

+alpha2 beeta4.
Q2. If alpha and beeta are zeroes of the polynomials x2-2x+3, then form a quadratic polynomials whose

zeroes are alpha+2 and beeta+2.
Q3. If alpha and beeta are the zeroes of the quadratic polynomials P(x) =ax2+bx+c,then evaluate:

alpha/beeta+beeta/alpha
PLEASE ANSWER MY QUESTIONS....I AM IN PROBLEM...!!!!

Ritik Gupta
thanya97's picture
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Joined: 15/07/2012
1 ans:  W k t : α+β=-b/a=
1 ans:  W k t : α+β=-b/a= -(-4)/1=4

Also αβ=c/a=3/1=3
 =α4β22β4
2β222)
=(3)2[(α+β)2-2αβ]                  {because w.k.t   (a2+b2=(a+b)2-2ab)}
Substituting the values of αβ and α+β
= 9{(4)2-2(3)}
9(16-6)
9(10)
90

2 ans: do the same like the first one answer is x2-8x+11
3 ans: is also similar to the first and second one the answer is (b2-2ca)/ac

Shridha's picture
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Joined: 13/06/2012
Get your answer : problem of polynomials

You can find your answer on
http://theknowledgepower.com/?page_id=193

visit on http://theknowledgepower.com submit your query and get  answer.

ann123's picture
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Joined: 22/04/2012
hi  I am looking for the

hi 

I am looking for the answers of MCQ test in class 9 of this site

jaimita's picture
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Joined: 11/02/2012
I m new

Hello everyone im new I would love to knIow everyone here!!!!

Jaimita the cutie

nitin cool's picture
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reply

hiiii jaimita lokking beautiful

nitin cool's picture
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reply

hiiii jaimita lokking beautiful

nitin cool's picture
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reply

hiiii jaimita lokking beautiful

abhishek mani's picture
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Joined: 21/10/2012
i m also new here jaimita

i m also new here jaimita

manish yadav's picture
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hiiiiii i am manish

hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

abhishek96's picture
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hiii................r u on fb

hiii................r u on fb

harsh22's picture
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Joined: 06/03/2012
sample paper

plz cn anyone give me sample paper for the FIT sa-2 exm

thnxx

megabhanu's picture
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Joined: 26/02/2012
notes

im looking for economics, geography,history notes for the classes vi to xii so plz guz.....
plz help me im ina big need of theseeeeeee

kajal mishra's picture
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Joined: 16/02/2012
oopss!! m sorry u wr askng

oopss!! m sorry u wr askng abt bord xms...NCERT s gud ans..

kj.01

kajal mishra's picture
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Joined: 16/02/2012
gud luck

mr.ranjeet u shud prfr..O.P Tondon's chem.buks..
M.L khanna's maths buk
nd concepts of phy.bye H.C verma..nd objective phy by sanjeev gupta..
prp 4 iit smrtly nt hardly cz only..51 days left
me prp 4 iit,,aieee nd many othr cmpttv xams..:)
ALL D BST

kj.01

Cricketer's picture
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Joined: 12/02/2012
can you give the notes for

can you give the notes for science all chapters term 2 ????

shreyalive's picture
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Joined: 14/01/2012
where can I find social

where can I find social science..history n sport:the story of cricket notes  ? ? ?

Susmy M A's picture
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Joined: 31/01/2012
s st

plz dudez...!
hlp me 2 cover my sst portions..... i study and then 4get it........ wht 2 do.... advce me yaaar...!!!

....suSMy....
Neelima Soni's picture
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Joined: 17/01/2012
Hi I'm a new student

Plesae help me to understnd "Nationalism in Europe

NEELIMA

Susmy M A's picture
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hlp me ttooooooooo!

hlp me ttooooooooo!

....suSMy....
sweit's picture
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Joined: 08/10/2012
help reply

what you both exactly want?? notes suggessions ??

rayhaan

Ash95's picture
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Joined: 18/01/2012
Hey guys. I'm a new student

Hey guys.

I'm a new student here and would really like to get to know everyone

---Ash

Donyi Taga's picture
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Joined: 30/10/2011
Meet me plz....

Hi' dear std.frnds meet me
My facebook username is Donyi Taga
Twitter username ia also Donyi Taga
Orkut Username is also Donyi Taga
And
Opera username is also Donyi Taga
My email adress is Donyitaga@gmail.com
Donyitaga7@yahoo.com

Donyi Taga

ashishsahoo83's picture
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Joined: 29/10/2010
hello...plz advice me...i

hello...plz advice me...i dunno how 2 cover up de portions taught...and alwayz get distracted while studing....plz. help me...

alwayz get distracted while studing....plz. help me...

A.K.47's picture
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Joined: 28/11/2011
not to get distracted

set a timetable for your self and concentrate, don't attend to others, phone calls, etc, its all in the mind ju concentrate

A.K.47

Ashley George's picture
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Joined: 13/10/2011
hello...plz advice me...i

hello...plz advice me...i dunno how 2 cover up de portions taught...and alwayz get distracted while studing....plz. help me...

Manisha Mehta's picture
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Joined: 06/09/2011
hi nayanika.. phototropism is

hi nayanika..
phototropism is the diectionsl growth of a plant.. i.e. when plant grows on a direction from where light is coming... this happens bcz f a plant hormone called auxin wich responds to the sunlight .. dis phenomena helps the plant to accumulate more sunlight for photosynthesis

NISHANTH DANGRA's picture
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Joined: 21/12/2011
request

hi....

hi.. dued

nayanika's picture
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Joined: 06/09/2011
science

why is photo-tropism required in plants ?

Manisha Mehta's picture
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Joined: 06/09/2011
hi guys

i am new here, currently doing post graduation,i give tutions for 9th and 10 th class for science n maths,ca some 1 help me wid it

nayanika's picture
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Joined: 06/09/2011
science

hey , if possible den ans my ques 2.....

Anshika A.'s picture
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Joined: 27/08/2011
Hii everyone...i new

Hii everyone...i new here....can any one help me out ...i need some friends here...n also serching for help...

kruthika beatrix's picture
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Joined: 19/05/2011
topperlearning.com is quite

topperlearning.com is quite good

kruthika beatrix's picture
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hmmmmm.....i need

hmmmmm.....i need help...........plz:(