Consider a region with uniform electric field and uniform magnetic field which are mutually perpendicular.Their magnitudes are $1.0 \mathrm{~V} . \mathrm{m}^{-1}$ and 0.1 T , respectively. A charged particle of mass 1.0 gram enters this region with a velocity perpendicular to the electric field. The particle moves with a constant velocity making an angle of $45^{\circ}$ with the magnetic field. Neglecting gravity, the kinetic energy of the particle, in joules, on entering the region is

• A

  $1.0$
• B

  $1.2$
• C

  $10.0$
• Correct answer
  D

  $0.1$

Hence, the correct answer is option: 'D'.