12.Atoms
medium

નીચેનામાથી કયા કણને $e/m$ નો ગુણોતર મહતમ હોય.

A

$A$

B

$B$

C

$C$

D

$D$

(AIIMS-2007)

Solution

The deflection of a particle along $y-$axis is electricfield is given by $y=\frac{E e x^{2}}{2 m v^{2}}$

$\Rightarrow \mathrm{y} \propto \frac{\mathrm{e}}{\mathrm{m}}$ for all other values to be constant. since $y$ is maximum for $D$, hence it has highest $e/m $ ratio.

Standard 12
Physics

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