$\text{X}$-rays can be generated by accelerating electrons in a vacuum and letting them impact on atoms in a metal surface. If the $\text{1000 eV}$ kinetic energy of the electrons is completely converted to photon energy. If the electron current is $\text{1.5}\times {\text{10}}^{-5}\text{ A}$, how many photons are produced in 10^-10 second?

• Correct answer
  A

  $9375\text{photons}$
• B

  $1000\text{photons}$
• C

  $8687\text{photons}$
• D

  $1610\text{photons}$

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