If electron are accelerated from rest through a potential difference of 10kv, what is the wavelength of the associated electron?
[m = 9.1 x 10\(^{-31}\)kg, e = 1.6 x 10\(^{-19}\)C, h = 6.6 x 10\(^{-34}\)js]
a
1.22 x 10-11m
b
3.87 x 10-10m
c
2.27 x 1011m
d
2.27 x 1014m
Explanation
Correct Option
aVideo Explanation
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Discussions (16)

FAECSB7610542
11 months ago
Mass (m) is missing in the denominator of the solution. The final answer gotten, if resolved using a calculator doesn't give the answer written.

MustaphaAremu
4 years ago
Can we use eV=hc/wavelength
And then introduce c which is velocity of light 3x10^8


