The de-Broglie wavelength of a tennis ball of mass $60 \ g$ moving with a velocity of $10 \ ms^{-1}$ is approximately . . . . . . (Planck's constant $h = 6.63 \times 10^{-34} \ J \cdot s$).
- A$1.1 \times 10^{-31} \ m$
- B$1.1 \times 10^{-33} \ m$
- C$1.1 \times 10^{-34} \ m$
- D$1.1 \times 10^{-32} \ m$
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