A cathode ray tube has a potential difference of $V$ between the cathode and anode. The speed of the cathode rays is given by
$v \propto V$
$v \propto \sqrt{V}$
$v \propto V^{- 1}$
$v \propto V^{2}$

Question

A cathode ray tube has a potential difference of V between the cathode and anode- The speed of the cathode rays is given byv propto Vv propto sqrt-V-v propto V-1-v propto V -2-

Toppr Admin · Accepted Answer

PD-VKE-eV-12mv2 -xA0- -xA0- m- mass of cathode particlev-x221A-2em-V -xA0- -xA0- -xA0- v- max velocity-xA0-e- charge on cathode particlev-x221D-x221A-V

A cathode ray tube has a potential difference of V between the cathode and anode. The speed of the cathode rays is given byv∝Vv∝√Vv∝V−1v∝V2

PD=VKE=eV=12mv2 m= mass of cathode particlev=√(2em)V v= max velocity, e= charge on cathode particlev∝√V

A cathode ray tube has a potential difference of $V$ between the cathode and anode. The speed of the cathode rays is given by
$v \propto V$
$v \propto \sqrt{V}$
$v \propto V^{- 1}$
$v \propto V^{2}$

$P D = V$
$K E = e V =$ $\frac{1}{2} m v^{2}$ $m =$ mass of cathode particle
$v =$ $\sqrt{(\frac{2 e}{m}) V}$ $v =$ max velocity, $e =$ charge on cathode particle
$v \propto \sqrt{V}$