Imagine an alternate universe where the value of the Planck constant is 6.62607 x 10 J.s. 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?
Imagine an alternate universe where the value of the Planck constant is 6.62607 x 10 J.s. 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?
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Transcribed Image Text:O ELECTRONIC STRUCTURE AND CHEMICAL BONDING
Understanding the meaning of a de Broglie wavelength
D 3/5
Imagine an alternate universe where the value of the Planck constant is 6.62607 × 10 ° J-s.
-3
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?
object
quantum or classical?
O classical
An eyelash mite with a mass of 12.1 ug, 260 um wide,
moving at 22. pm/s.
O quantum
O classical
An airplane with a mass of 1.58 x 104 kg, 14.0 m long,
moving at 600. km/h.
O quantum
O classical
An atom with a mass of 1.0 x 10-26 kg, 76. pm wide,
moving at 131. m/s.
quantum
O classical
A mosquito with a mass of 1.8 mg, 7.0 mm long, moving
at 1.1 m/s.
O quantum
O O
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