Question 26 of 155

Calculate the de Broglie wavelength of an α-particle emitted from radium having an energy of 4.8 MeV.

(Mass of α-particle=6.6 x 10-24 g; h=Planck's constant = 6.626 x 10-27 erg sec)

(A) 6.18 x 10-13cm

(B) 0.58 x 10-8cm

(C) 6.58 x 10-13cm

(D) 4.12 x 10-11cm