9.0 x 10-24m
4.55 x 10-17m
7.25 x 10-11m
6.20 x 10-8m
Correct answer is C
λ=hc12mv2
= 6.6x10−34×3×1080.5×9.1×10−3(107)2
= 7.25 x 10-11m
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