The de Broglie wavelength of a grain of sand, of mass 1 mg, blown by a wind at the speed of 20 m/s is [h = 6.63 × 10-34 J∙s]
A. 33.15 × 10-36m
B. 33.15 × 10-33 m
C. 33.15 × 10-30 m
D. 33.15 × 10-30 m.
Answer:C
The de Broglie wavelength of a grain of sand, of mass 1 mg, blown by a wind at the speed of 20 m/s is [h = 6.63 × 10-34 J∙s]
A. 33.15 × 10-36m B. 33.15 × 10-33 m C. 33.15 × 10-30 m D. 33.15 × 10-30 m.