How Many Times Longer Is the De Broglie Wavelength of a Helium

question 20

Multiple Choice

How many times longer is the de Broglie wavelength of a helium atom (6.647 *10^-27 kg) moving at 220 m/s than that of a baseball (0.145 kg) moving at 35 m/s?

• A)3.5 *10²⁴
• B)2.2 *10²⁵
• C)9.5 * 10³³
• D)1.5 * 10⁹
• E)3.7 * 10³⁴

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