yikes..............help.....

is the ans B ?? for your e- wala question...

gv question no . re...

explanation .. 1/λ = R (1/ n1² - 1/n2²)

here R is proportional to m (mass of e-)

so here the formula becomes :

1/λ = RX 3 (1/ n1² - 1/n2²)

=> 1/λ = 3R (1/4 -1/9)

=> λ = 12/5R

hence ans is B and D (sorry for the prev post :()

the next one ...

someone asked .... i think celestine....

chcek that discussion .. (there has been a long discussion..)

oh thnx........

well.. akand ... i din get the meaning of ur entropy question...

entropy ... cant be found out in that way...

i mean we can find the change in entropy for a particular process

like,,

u cant find out the potential of anything... u can just find the potential diff ...

so atleast i dun hav any answer for that question :(

http://targetiit.com/iit_jee_forum/posts/teaser_really_gud_one_2786.html

chcek this...

i dont think so sky............... entropy is d measure of randomness...
example.......which has more entropy....solid or gas??
gas..obviously

In many branches of science, entropy is a measure of the disorder of a system. The concept of entropy is particularly notable as it is applied across physics, information theory and mathematics.

In thermodynamics (a branch of physics), entropy, symbolized by S,[3] is a measure of the unavailability of a system’s energy to do work.[4][5] It is a measure of the disorder of molecules in a system, and is central to the second law of thermodynamics and to the fundamental thermodynamic relation, both of which deal with physical processes and whether they occur unexpectedly. Spontaneous changes in isolated systems occur with an increase in entropy. Unexpected changes tend to average out differences in temperature, pressure, density, and chemical potential that may exist in a system, and entropy is thus a measure of how great the unexpected changes are.

wikipedia

Sorry to ask this ques............but how do we derive F=qvB??? I cant find it any wher.... wel i think by dimensional formula hehe

ok...........sum1 tel me how shud i show that a power of a lens is inversely proportional to λ²................???
wid steps plzzzz

ya it is..............but shud we hav to kno it.........its too complicated.....
is it enuf to kno tht μ is inversely prop to λ²???? or shud v kno d whole formula??

ok better.......i dint kno bout A and B...............those constants are too big.............by d way thnx..........
wat bout F=qvB wala???

and cud u explain y??

a. one atom of H....
b. one molecule of CH3COOH
c. one ozone molecule

all r one in number...

so how ll they show randomness???

next...............

prev to prev to prev ka ans :

we have quality factor Q=ω₀L/R

ii) since quality factor of X > Y >Z

and ω₀L is same for all .. so resistance used varies as z > y >x.

i) ω₀C= 1/ω₀L

ω₀ and L are fixed.. so capacitance used in each case is same.

quality factor is highest for X. [see from the graph.. the one with highest peak has got high quality factor or more sharpness as well as high selectivity]

at ω₀, the impedance is completely resistive since the circuit is in resonance.