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Wave Properties of Light Post assessment#31

Posted: Wed Oct 18, 2017 4:05 pm
by Peter Dis1G
Calculate the de Broglie wavelength of a 0.155 kg ball travelling at 85.0 m.s-1. Can we detect this wavelength or observe the wavelike characteristics of this ball? I am stuck on second one. Can anyone tell me when we can or can't detect wavelength? Thanks.

Re: Wave Properties of Light Post assessment#31

Posted: Wed Oct 18, 2017 4:25 pm
by Juno Suzuki 3B
Typically, if the wavelength is smaller than 10^-15 m, it cannot be detected or experimentally verified in the lab.

Re: Wave Properties of Light Post assessment#31

Posted: Wed Oct 18, 2017 8:24 pm
by Peter Dis1G
Thanks!

Re: Wave Properties of Light Post assessment#31

Posted: Thu Oct 19, 2017 10:26 pm
by Alex Nechaev 1I
To add on to the first response, we are generally unable to observe wave-like behaviors in large objects like baseballs. Because electrons are so small, we can measure wavelength and frequency, but not enough wave-like properties are visible in a larger object to actually make a difference. They are just much too large.