ELECTRONIC STRUCTURE Understanding the meaning of a de Broglie wavelength Imagin

Question

ELECTRONIC STRUCTURE Understanding the meaning of a de Broglie wavelength Imagin lternate universe where the value of the Planck constant is 6.62607 x 10J-s In that universe, which of the following objects would require quantum mechanics to describe, that is, would objects would act like everyday objects, and be adequately described by classical mechanics? object quantum or classical? O classical quantum classical quantum classical quantum classical quantum Aturtle with a mass of 520. g, 28, cm long, moving at 1.6 cm/s. A human with a mass of 93. kg, 1.6 m high, moving at 2.8 m/s. A mosquito with a mass of 2.2 mg, 6.5 mm long, moving at 2.5 mýs A virus with a mass of 5.2 x 1017 g, 370. nm wide, moving at 0.90 um/s. 2 3 4 5 6

Explanation / Answer

In the given example first three follows classical mechanics as they have bigger size and faster velocity

So answer for

a classical

b classical

c classical

for the last example the the mass is too small which is in order of 10^-17, Size is also in nm which is 10^-9 m and velocity in 10 um/s i.e order of 10^-6 m/s

so this one follows quantum mechanics

d quantum

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