An electron has kinetic energy, Chemistry

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An electron has kinetic energy 2.8 x 10 ^-23J . de-Broglie wavelength will be nearly:

(me: 9.1 x 10 ^-31 kg)

(1) 9.28x 10^-4m

(2) 9.28 x10^-7 m

(3) 9.28 x 10 ^-8m

(4) 9.28x 10 ^-10 m

Ans:(c) 9.28 x 10 ^-8m

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