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17/08/2021 11:10 am
Topic starter
The de Broglie wavelength of a tennis ball of mass 60 g moving with a velocity of 10 metres per second is approximately
(a) 10–31
(b) 10–16
(c) 10–25
(d) 10–33
1 Answer
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17/08/2021 11:13 am
Correct answer: (d) 10–33
Explanation:
λ = \(\frac{h}{mv}\)
= \(\frac{6.6 \times 10^{-34}}{60 \times 10^{-3} \times 10}\)
= 10–33 m