Calculate de broglie's wawelength for an electron travelling at one % the speed of lightcalculate frequency of a radiation whose wawelength is 4000 angstroms

Calculate de broglie's wawelength for an electron travelling at one %

1.	Calculate de broglie's wawelength for an electron travelling at one % the speed of lightcalculate frequency of a radiation whose wawelength is 4000 angstroms
Answer» De BROGLIE's Wave length λ = H / P, where p = the momentum of the electron λ = 6.626 * 10⁻³⁴ J . s / (9.109 * 10⁻³¹ kg * 3 * 10⁶ m/s) = 2.425 * 10⁻⁹ meters ============== frequency = speed of light / WAVELENGTH = 3 * 10⁸ m/s / 4000 * 10⁻¹° m = 7.50 * 10¹³ Hertz