If $10^{22}$ gas molecules each of mass $10^{-26}\, kg$ collide with a surface (perpendicular to it)elastically per second over an area $1\, m^2$ with a speed $10^4\,m/s$, the pressure exerted by the gas molecules will be of the order of
  • A${10^8}\,\frac{N}{{{m^2}}}$
  • B${10^3}\,\frac{N}{{{m^2}}}$
  • C${10^4}\,\frac{N}{{{m^2}}}$
  • D
    None of this
JEE MAIN 2019, Medium
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