When fast charged particles pass through a cloud chamber filled with argon at a pressure P = 1 atm and saturated water vapor, argon ions are formed, which are centers of condensation of water vapor. Assuming that the movement of ions is due only to diffusion, estimate the width of the particle trail if condensation occurs t = 0.01 s after the passage of the particles. The effective scattering cross section of argon ions on atoms is s = 10-15 cm2. Argon atomic mass A = 40, temperature T = 300 K.

Answer. Format gif