Messages posted by sg_90

when the electron jumps to a highier excited state to the L or the m-shell....then when the electrons returns back to initial ground state to the K-shell then the X-rays are emitted .when transition form M-kK then it is known K-beta ..and that from yhe L-K...is called K alpha

the potential difference is between........the surface and a point at a distance 3R frm the centre of the hollow sphere...and field is defined as :-

V/

r

therfore here

V is given as V....and

r=(3R-R)2R

therfore the field intensity at 3R is V/2R

the answer is (A)....

rate me if i am correct!!!!!

the combinations of gp that can be possible are 1 2 4,2 4 8, 1 3 9 with their mutual rearrangement ......so if u consider all the possibilities and check their eligibility you will find 931 as ur answer ....................................

can ne 1 tell me wat do u mean by sinh(x)....etc....i.e cosh as wellas tanh....plzzz xplain me dese terms!!

pallav see----if take this thing into consideration that any g.p wen applied log to the same base will become an a.p... and hence the common ratio becomes the common difference of the series .....

the similar concept can be applied here

hey seeker....for quesst...in mechancs you consider a system rite??????

now see, the forces ----which are applicable only inside the system are known as internal forces

now the forces which are disturbing the state of equillibrium of the system(friction,gravity)are called external forces....

hope u got them

plzzzz help experts facin a problem here!!!!

the explanation given by pink is just for positive inegrat soln...

now see xand y or y and z or x and z or none are negative

can both be negative------4 cases

taking 2 at a time now total no of solutions (integral are)----30*4=120

the answer is 236

the same as KAB

the answer is 120 rite!!!!

avdesh see..if there is no air resistance then the drops would have acc... = g

umang bahaia

see first factorise 24

then using permuttation find the no. of ways in which each digit occurs in these three places

i think the answer is 120...

sss....here the water is still. its immaterial here that weather we take the velocityw.r.t ground or river..

in quess. still water is given to indicate thet the velocity is w.r.t ground not w.r.t to the river

domt know the ans

exparts plzzz help!!!!!

plzzzz helpitzz urgent!!!!!!

is the answer 2. u tell me whether irt is right or or not

use the inequality A.M.>G.M.

hello shipra ji i think u frgot the countin

ne ways44-2=42

i agree wid neeleshv actuallyt there forms a chloronium ion which is an elctrophile

r u sure that is 'n' in its place or it is x.

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