9.0 x 10-24m
4.55 x 10-17m
7.25 x 10-11m
6.20 x 10-8m
Correct answer is C
\(\lambda = \frac{hc}{\frac{1}{2}mv^2}\) = \(\frac{6.6 x 10^{-34} \times 3 \times 10^8}{0.5 \times 9.1 \times 10^{-3} (10^7)^2}\) = 7.25 x 10-11m
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