Dual Nature of Radiation and Matter

Question: The de-Broglie wavelength of an electron having $80eV$ of energy is nearly ($1eV = 1.6 \times 10^{–19}$ J, Mass of electron = $9 \times 10^{–31}$ kg Plank’s constant = $6.6 \times 10^{–34}$ J-sec)



1) 140 Å
2) 0.14 Å
3) 14 Å
4) 1.4 Å
Solution: Explanation: No Explanation
Matter Waves

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