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After determining the wavelength (m) using De Broglie's wave equation use the answer to determine if it's below any # x 10^-15 in scientific notation, if it is then it's considered to have wavelike properties and if it's above that it does not have wavelike properties. The smaller the wavelength, the harder it is to observe the wave nature. 10^-15 is used as a determining factor because on the electromagnetic spectrum, gamma rays are the smallest wavelength and any other wavelength below that will not be considered to have wavelike properties.
All matter has wave-like properties according to De Broglie's equation. Just like Dr. Lavelle said in class this equation defines that any moving object with momentum p has wavelike properties with a specific wavelength. However this wavelength can only be detected in moving objects with extremely small mass as as an electron, which is why in the example we worked in class a moving car does not have detectable wavelike properties.
the size of the particle matters when trying to observe or detect the wavelike properties. all matter has wavelike properties but some things like baseballs and cars are too big in order to detect the wavelike properties. the outcome of the De Broglie equation must be greater than x10^-15 to be detectable
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