The mean path length of alpha-particles in air under standard conditions is defined by the formula R=0.98 xx 10^(-27) V_(0)^(3) cm, where V_(0)(cm//s) is the initial velocity of an alpha-particle. Using this formula, final for an alpha-particle with initial kinetic energy 7.0 MeV. (a) Its mean path length. (b) The average number of ion pairs formed by the given alpha-particle over the whole path R as well as over its first half. Assuming the ion pair formation energy to be equal to 34 eV.

The mean path length of alpha-particles in air under standard conditio

1.	The mean path length of alpha-particles in air under standard conditions is defined by the formula R=0.98 xx 10^(-27) V_(0)^(3) cm, where V_(0)(cm//s) is the initial velocity of an alpha-particle. Using this formula, final for an alpha-particle with initial kinetic energy 7.0 MeV. (a) Its mean path length. (b) The average number of ion pairs formed by the given alpha-particle over the whole path R as well as over its first half. Assuming the ion pair formation energy to be equal to 34 eV.
Answer» ANSWER :[(a) `6.1 cm` (b) `2.1 XX 10^(5)` and `0.77 xx 10^(5)`]

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