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Question
The de- Broglie wave length of an electron moving with a speed of 6.6 × 105 m/s is approximately
Options
10–11 m
10–9 m
10–7 m
10–5 m
MCQ
Solution
10–9 m
Explanation:
`lambda = h/(mv)`
= `(6.63 xx 10^-34)/(9 xx 10^-31 6.6 xx 10^15)`
= 10–9 m
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