thanx...achin...u dont know since when i was waiting for ur reply...

see the date..i posted the article...

i must thank u ...u made my effort a success..

regards

budokai

[10.999999999999999999999999999999999999999999999]..where [] denotes  the  step function /..

edited...

my ...dear  friend..

u shud not  worry...

the paper will be easy enuff..just though i cud give u some tips...

1.dont waste time on a particularquestion..(sumtimes u come to know that ..but still  u stick to it..dont do that.)

2. try doing the english and logical part in between phy and maths..will work fine..(a unique tip)

3.try not using the pen much..do only calculations..dont write sentences..

4.feel confident throughout the paper... say to  urself ..if i wont  who will...??

5.many more.but u dont need them  ..stay cool for now..relax..

BEST OF LUCK for tomorrows paper....

delete that 'forgot' word from my  reply..i know u all  r damn intelligent.

see..answer d is straight away..deleted...

the most appropriate reason..is...

2 IMAGES ARE FORMED WHEN THERE ARE 2 LENSES ...

u might have heard but forgot that .'if we break a mirror into n pieces..then all n pieces behave as independent mirrors..

here..theres is  a difference..

instead of breakin it into two..it has been painting  black..which has the only effect that no.  of light rays..and thus intensity is reduced..hence..c)..

ENJOY

second one:letter d

i wanna buy too..

a perfect answer..

well...

have a luk at this..

answer the third question on this page...with pride..

http://mathforum.org/workshops/sum98/participants/glazer/phone/great.html

any one on  goiit..who can stand with  his answer to be 8..is welcome..

but...[8-h] when h tends to zero is taken as 7