The de Broglie wavelength of a particle is $1000 \ nm$. What is its momentum? $(h = 6.6 \times 10^{-34} \ J \ s)$
- A$6.6 \times 10^{-25} \ kg \ m \ s^{-1}$
- B$6.6 \times 10^{-25} \ kg \ m \ s^{-1}$
- C$6.6 \times 10^{-28} \ kg \ m \ s^{-1}$
- D$6.6 \times 10^{-26} \ kg \ m \ s^{-1}$
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