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  3. Chemistry
  4. The de Broglie wavelength of a tennis ball mass 60 g moving with a velocity of 10 m per second is approximately:

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Q. The de Broglie wavelength of a tennis ball mass $60\,g$ moving with a velocity of $10\, m$ per second is approximately:

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Solution:

$\lambda=\frac{h}{m v}=\frac{6.626 \times 10^{-34}}{60 \times 10^{-3} \times 10}=10^{-33}$