Physics · 2020
JEE Main · 9 January 2020, Shift 2 · Q10
Two gases - argon (atomic radius 0.07 nm, atomic weight 40) and xenon (atomic radius 0.1 nm, atomic weight 140) have the same number density and are…
Two gases - argon (atomic radius $\displaystyle 0.07$ nm, atomic weight $\displaystyle 40$) and xenon (atomic radius $\displaystyle 0.1$ nm, atomic weight $\displaystyle 140$) have the same number density and are at the same temperature. The ratio of their respective mean free times is closest to :
Official answer
(1)
$\displaystyle 3.67$
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.