sankar   sankar is offline sankar's messages in the community
Message
Catalogs Discussion Forums -> Coaching Institutes & Course Material -> I want to take a correspondence course for RMO for next year... what options do I have? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

bt doesn't provide any course for rmo

 

Catalogs Discussion Forums -> General Physics -> plzz tell hw to get good marks in phy..im so week in this subjet... -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
use d.c pandey and soon u will find phy easy and interestingit is the best book for phy
Catalogs Discussion Forums -> General Physics -> The radius of the earth contracts to half of it's present value .Then the length of the day will be -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
rate if useful
Catalogs Discussion Forums -> General Physics -> The radius of the earth contracts to half of it's present value .Then the length of the day will be -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
Apply conservation of momentum to solve this.Moment of inertia of earth = = (2mr^2)/5 Initial angular momentum = (2mw r^2)/5 Now if radius contracts to half of its present value (assuming mass of the rearth does not change) Final angualar momentum = L2 = = 2 M (R/2)^2 w2 / 5 = Applying conservation of angular momentum we have L1 = L2 or M R2 w1 / 5 = M R2 w2 / 10 or w2 =2 w1 w1/w2 =T2/T1 (RATIO OF TIME PERIODS)angular vel is doubled thus lengthof the day is halved that is 12/ 2 = 6hrs
Catalogs Discussion Forums -> General Physics -> The radius of the earth contracts to half of it's present value .Then the length of the day will be -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
6 hrs
Catalogs Discussion Forums -> Coaching Institutes & Course Material -> Can any one suggest ,which mathematics book will be best for Concept building ,or i should ask for v -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

use arihant for concept building

after u finish arihant opt for tmh

Community shelf Community shelf -> Downlaod B*R*L*L*I*A*N*T T*U*T*O*R*I*A*L*S NOW -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
could u please send me direct link
Catalogs Discussion Forums -> Coaching Institutes & Course Material -> is it possible to finish the maths portions in 4 months -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
is it possible to finish the maths portions in 4 months
Community shelf Community shelf -> jokes -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]

1. Sardarji, very proud of his humour used to say to his wife leaving for the office : 'Good bye Char Bacchon ki Maa' . One day his wife fed up of this answered : ' Bye Bye, Doo Bacchon Ke Baap'. That ended the Santa Singh :  

 

 

2. Santa and Banta had just bought two horses. Now the problem was that they could not differenciate between the two horses.So,one day Santa cuts the left ear of his horse, so that it is easy to know that it is his horse.While doing so,an enemy of Santa looks at him.This enemy also cuts the left ear of banta.By doing so santa and banta come in confusion to differenciate. So, next thing santa keeps on cutting his horse's right ear , then his tail , then makes him blind and so on .And the enemy also kept on doing so with banta's horse.At last Santa's horse had no legs left and banta's horse was with one leg only .The enemy also went and cut banta's horse one leg. So, in the morning it was the same sitaution , How to diffrenciate thier horses.So, after thinking and putting lots of effort to thier mind - Santa said - O.K You keep the black one and i will keep the white .

3. Everybody knows the famous under creek/sea tunnel joining England and France. Before it's construction, the tenders were invited from various construction companies by giving newspaper ads throughout the world. Banta Singh came across one such ad and he decided to fill the tender. On the day of opening the tenders everybody was surprised to find Banta Singh's tender at it's very lowest. Other tenders were quoting billions of pounds, Banta Sing had offered to do the job for just 10000 pounds. Now , as per the rule Banta was to get the contract. Before giving works order to Banta Singh, the officer asked BantaSingh as to how he could afford to work at such a low budget. Banta Singh said,"look, back home, there is my brother, Santa Singh.I will call him here. We will take two shovels. I will start diging from English bank and Santa Singh will start digging from French bank. The moment we meet, you get a tunnel." The dumbstruck officer asked with courage," and if you don't meet?" Banta Singh replied," then you will get two tunnels in same cost."

4.  Santa Singh told his wife that after his death she should marry Banta Singh. "But why should I marry Banta who is your enemy no 1" enquired his wife. Santa quipped, "Oh Darling, this is the only way I can take my revenge from that useless fellow. Ha! Ha! Ha!!

 

Catalogs Discussion Forums -> Coaching Institutes & Course Material -> which buk to buy for objective math ad gupta,arihant or tmh....pls suggest -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
arihant ones are the best
Catalogs Discussion Forums -> Physical Chemistry -> which book i should follow for physical chemistry -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

  modern approach to chemical calculations  by r c mukherjee

Catalogs Discussion Forums -> Coaching Institutes & Course Material -> what should be the perfect timetable for a class 11 student who starts his preperation now -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
what should be the perfect timetable for a class 11 student who starts his preperation now
Catalogs Discussion Forums -> Coaching Institutes & Course Material -> i am a student of 2 yrs class program at my institute we get a lot of homework and i am not able to -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
i am a student of 2 yrs class programat my institute we get a lot of homework and i am not able to do any self study i am a bit tensed pls help me
Catalogs Discussion Forums -> Trignometry -> can anyone help with this question if cos x + cos^2 x =1 & a sin^12 x+ b sin^ 10 x+ csin^ 8x -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

 no the answer is 3

 

Catalogs Discussion Forums -> Trignometry -> can anyone help with this question if cos x + cos^2 x =1 & a sin^12 x+ b sin^ 10 x+ csin^ 8x -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
can anyone help with this questionif cos x + cos^2 x =1 & a sin^12 x+ b sin^ 10 x+ csin^ 8x + d sin^ 6x =1then (b+c)/(a+d) =
Catalogs Discussion Forums -> Coaching Institutes & Course Material -> from where can i download maths texts -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
from where can i download maths texts
Catalogs Discussion Forums -> Coaching Institutes & Course Material -> booooooooooooooooksssss !! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
what is the cost of iit mathematics by ml khanna?
Catalogs Discussion Forums -> Coaching Institutes & Course Material -> i have joined a 2yrs classroom program for iitjee.which all books should i follow for my preparation -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
i have joined a 2yrs classroom program for iitjee.which all books should i follow for my preparation
 
 
Go to: 
Free Sign Up!

Preparing for IIT-JEE ?

Arihant Revision Package for IIT JEE - Books, Practice Tests + Rank Predictor


@ INR 1,995/-

For Quick Info

Name

Mobile No.

Sponsored Ads