Two concentric spherical shells have radii `0.15m` and `0.3m`. The inner part is given a charge `-6xx10^(-2)mu C` and electron escapes from the inner sphere with negligible speed ,Assuming that the region between the sphere is vaccum ,the speed with which it wil strike the outer sphere is `x xx 10^(6)ms^(-1)` .Find the value of `x`? `(e)/(m)"for electron"=1.76xx10^(11)Ckg^(-1)`

Two concentric spherical shells have radii `0.15m` and `0.3m`. The inn

1.	Two concentric spherical shells have radii `0.15m` and `0.3m`. The inner part is given a charge `-6xx10^(-2)mu C` and electron escapes from the inner sphere with negligible speed ,Assuming that the region between the sphere is vaccum ,the speed with which it wil strike the outer sphere is `x xx 10^(6)ms^(-1)` .Find the value of `x`? `(e)/(m)"for electron"=1.76xx10^(11)Ckg^(-1)`
Answer» Correct Answer - 8 Gain `K.E =e=(V_(2)-V_(1))` `rArr (1)/(2)mv^(2) =e(1)/(4piepsilon_(0))q((1)/(a)-(1)/(b))` `V^(2)=(2e)/(m)[(1)/(4piepsilon_(0))q(ab)/(b-a)]` ` rArr v=8xx10^(6)ms^(-1)=x xx10^(6) x=8`

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