 # Doubt from Physics

Is it C?

No it is (B)

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Nice question.

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Post more such challenging physics questions

@Svanay_Lappu can help

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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

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

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

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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.

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

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