029 What is the wavelength of a electron acc through a P.D. of 100 v.
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Answer:
ANSWER
De Broglie wavelength, λ(=
p
h
)=
2meV
h
=
2×9.1×10
−31
×1.6×10
−19
×100
6.63×10
−24
=1.227×10
−10
m=1.227A
0
This wavelength belongs to X-ray spectrum.
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