Question
The graph between $E$ and $v$ is
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

($A$) $\mathrm{E}=0, \mathrm{~B}=0$
($B$) $\mathrm{E}=0, \mathrm{~B} \neq 0$
($C$) $\mathrm{E} \neq 0, \mathrm{~B}=0$
($D$) $\mathrm{E} \neq 0, \mathrm{~B} \neq 0$
Choose the most appropriate answer from the options given below :

$[\lambda$ is the radioactive decay constant]