Doubt from Physics

Ans is (B) kindly help

Is it C?

No it is (B)

2 Likes

Nice question.

1 Like

Post more such challenging physics questions


Please help @Ishaan_Shrivastava @harsh2 @mihir @ashley @Amal-1

@Svanay_Lappu can help

1 Like

Bro I gotta give a test soon, sorry

I’ll send solution by evening

ok

Can you confirm my answer sooner? I’m getting x=8

Brother I’ll try whenever I get time. Can’t guarantee when though.

q QN 5 me wo max ke liye kyun usko diffrentiate kiye h tell ne @harsh2 @mihir @Rade_Woosh @Svanay_Lappu @Harish_R

I’m getting 7

5 Likes

yes … vaise bina differentiate kie bhi keh sakte hai ki force tabhi max hoga jab both charges are equal…

1 Like

ha got it bro pr diffnctiate krne ka bss janna chah rhe the

1 Like


@complexroots @Ishaan_Shrivastava @Naman1 @adikap13 @harsh2 @Cooljet123
how do i obtain expression for option b… ans is abc

2 Likes

Ok so if you write thermal equilibrium equation for outer shell (which has some radius kR) then we will obtain the relation:
T(out)sqrt(k)=T(in)
and now we can write thermal equilibrium for inner shell, and then we can obtain formula for T(in), which is:
T(in)^4 = (P/((4pi
R^2*(sigma)))*(k^2)/(k^2-1)
And hence we can say that the temperature if inner shell is dependent on radius of outer shell.

2 Likes

what eqns u equated for thermal equilibrium condition?
@Cooljet123 @Amal-1 u got any idea?

1 Like