## Quiz 1 Preparation Calculating Wavelength

$\lambda=\frac{h}{p}$

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Joined: Fri Sep 25, 2015 3:00 am

### Quiz 1 Preparation Calculating Wavelength

On one of the preparation quizzes there is a question that asks "Calculate the wavelength of a motorcycle of mass 275 kg traveling at a speed of 125 km/hr. I used the DeBroglie Equation and my final answer was 6.94x10^(-41) m. However the answer says that it's 6.94x10^(-38) m. I am not sure if I messed up on one of the conversions but I divided 6.626x10^(-34) J.s/(275000g)*(34.722 m/s) and got the answer I stated.

vidish
Posts: 13
Joined: Fri Sep 25, 2015 3:00 am

### Re: Quiz 1 Preparation Calculating Wavelength

the standard unit for mass is always kilograms, use 275kg and you will get the right answer.