3.63 x 10-19m
6.51 x 10-9m
4.24 x 10-8m
7.25 x 10-8m
Correct answer is C
λ=hc12mv2=6.6×10−38×3×10812×9.1×10−31(2×106)2
= 4.24 x 10-8m
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