Q. The mass of a particle is 400 times than that of an electron and charge is double. The particle is accelerated by 5V. Initially the particle remained in rest, then its final kinetic energy will be
A) 5 eV
B) 10 eV
C) 100 eV
D) 200 eV
Explanation
(b) Gained in KE $= q\ V = 2 \times 5 = 10\ eV$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.