How much kinetic energy will be gained by an α -particle in going from a point at 70 V to another point at 50 V ?

Question

How much kinetic energy will be gained by an α -particle in going from a point at 70 V to another point at 50 V ? (A) 40 eV (B) 40 keV (C) 40 MeV (D) 0 eV

Tardigrade Admin · Accepted Answer

K E=q(V1-V2) =2 × 1.6 × 10-19 ×(70-50) =40 eV

Q. How much kinetic energy will be gained by an $α$ -particle in going from a point at $70 V$ to another point at $50 V$ ?

40 eV

40 keV

40 MeV

0 eV

$K E = q (V_{1} - V_{2})$
$= 2 \times 1.6 \times 1 0^{- 19} \times (70 - 50)$
$= 40 e V$

Q. How much kinetic energy will be gained by an α -particle in going from a point at 70V to another point at 50V ?

40 eV

40 keV

40 MeV

0 eV

KE=q(V1​−V2​) =2×1.6×10−19×(70−50) =40eV

Q. How much kinetic energy will be gained by an $α$ -particle in going from a point at $70 V$ to another point at $50 V$ ?

$K E = q (V_{1} - V_{2})$
$= 2 \times 1.6 \times 1 0^{- 19} \times (70 - 50)$
$= 40 e V$