Question

calculate the wave length of moving electron having 4.55into10-25jof k. E

Answer 1

Kinetic energy =12mu2=4.55×10−25J

u2=4.55×10−25×29.108×10−31

u=103m/s

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∴λ=hmu

⇒6.625×10−349.108×10−31

⇒7.27×10−7m