The de Broglie wavelength of an electron moving with a speed of 2 * 10^6 ms^-1 is
Correct: A
The de Broglie wavelength of a particle is given by the equation λ = h/mv, where h is Planck's constant, m is the mass of the particle and v is the velocity of the particle. For an electron, λ = (6.626 * 10^-34)/(9.11 * 10^-31 * 2 * 10^6) = 3.63 * 10^-10 m