Physics MCQs thread.

[rango2011]

i can do it with the units but i need the working that leads to this expression...

 

[hassam]

chek 1st one i.e a sqrt(ms^-2*m)....sqrt(m^2s^-2)....so after taking sqrt...it comes ms^-1..........that wasnt hard at all just indices chapter

 

[hassam]

no One ansers questions at this thread WTH !!!

 

[rango2011]

dude i can get the answer with the homogeneity...i just wanna know if there is any way you can work the expression out without the use of units

 

[yubakkk]

@rango
this iz the q. from measurment and units so all equation may not be correct so we should check units

 

[Zishi]

no One ansers questions at this thread WTH !!!

Are you posting questions in which you've got problems OR like chem(just for fun)?

 

[hassam]

TELL any one how did u figure it out m waitinggg

y its nt 45

 

[hassam]

the questions in which i need help...m writng that i cnt understnd...others are for u ppl to try..

 

[hassam]

nw ans ma previous question....anyone?,,,,why its nt 45 bt 30

 

[Zishi]

TELL any one how did u figure it out m waitinggg

y its nt 45

Because the half wavelength has an angle of 90 degree. Quarter of it is 45 degrees. The distance between those two points is less than a quarter of wavelength, so it must be less than 45 too.

 

[hassam]

thats for fun

 

[hassam]

hmm kk zisi

 

[Zishi]

thats for fun

C

 

[yubakkk]

ANS IZ a

 

[hassam]

no its C as zishi said....i used analogy to figure it out....supposed 5 row ...each containing 5 resistors of 1 ohm...nd then figured out total..it came out 1....so i cheked it for another case...and then ans has to be C

 

[yubakkk]

oh yea 1/4+1/4+1/4+1/4=1/r
r=1
so reasultant=r

 

[hassam]

WAZ TRIKY THOUGH

 

[hassam]

CHEK THAT link i posted

Checked it, but I was wondering if you could email me pdf files from wenku baidu...

i hv not downloaded them....

 

[hassam]

this one i dint undrstood it completely

zishi help me in this one

 

[Zishi]

this one i dint undrstood it completely

zishi help me in this one

Ok, wait. Searching for it in the thread...