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de broglie post module q 35

Posted: Sun Oct 21, 2018 12:48 am
by Karina Koo 2H
Calculate the wavelength of a 275 kg single-seat electric car traveling at a speed of 125 km.hr-1. Do electric cars have wavelike properties?

Re: de broglie post module q 35

Posted: Sun Oct 21, 2018 12:52 am
by harshitasarambale4I
I think this question is asking you to relate cars to the particle properties of light rather than the wave properties of light. You would still solve the question normally.

Re: de broglie post module q 35  [ENDORSED]

Posted: Sun Oct 21, 2018 9:07 am
by Ariel Cheng 2I
You would just solve this as you normally do.
λ = h/p = h/mv

h = 6.626 x 10^-34
m = 275 kg
v = 34.72 m/s

λ = (6.626 x 10^-34)/(275*34.72) = 6.94 x 10^-38 m

A car does not have wavelike properties as only very small objects have measurable wavelike properties. As objects become larger, wavelike properties become negligible. Hope this helped!