the kinetic energy of electron is 3.0*10 to the power of -25 j the wave length of the electron is
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see this is correct answer
Explanation:
Answer
Correct option is
B
16.8 eV
As we know,
λ=
2mE
h
⇒E=
2mλ
2
h
2
=
2×9.1×10
−31
×(0.3×10
−9
)
2
(6.6×10
−34
)
2
=2.65×10
−18
J
=16.8 eV
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