Imagine an alternate universe where the value of the Planck constant is
×6.62607·106Js
.
In that universe, which of the following objects would require quantum mechanics to describe, that is, would show both particle and wave properties? Which objects would act like everyday objects, and be adequately described by classical mechanics?
|
d) A car
m = 1400 kg
v = 135 km/h = 135 km/h *(1000 m/km)/(3600 s/hr)
= 37.5 m/s
Wavelength = (6.62607 x 106 J•s)/(1400 kg)(37.5 m/s)
= 1.26 m
As the de-Broglie wavelength for all the objects is in observable range. So, all these a) to d) will follow quantum mechanics in alternate universe.
Imagine an alternate universe where the value of the Planck constant is ×6.62607·106Js . In that universe, which of the...
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