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30/09/2020 12:13 pm
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The wavelength of a 150 g rubber ball moving with a velocity of 50 ms–1 is:
(a) 3.43 x 10-33 cm
(b) 5.86 x 10-33 cm
(c) 7.77 x 10-33 cm
(d) 8.83 x 10-33 cm
1 Answer
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30/09/2020 12:15 pm
(d) 8.83 x 10-33 cm
Explanation:
From the de-Broglie formula for wavelength
λ = h/p = h/mv = 6.6 x 10-34/150 x 50
= 8.83 x 10-33 cm