Quantum mechanics
It describes about the motion and correspondence principle, wave particle duality, uncertainty principle, adding the quantization of energy concepts, cooperation of subatomic particles.
Classical Mechanics
In the absence of quantum mechanics it classical mechanics describes the behavior of particles on the basis of Newton's law.
1. A bacterium with the mass of 8 pg, 5m long and moving at
1
m/s
for calculation
= h /mu
= Planck's
Constant
m = mass in Kg
u = speed (m / s)
so, = 6.62607 * 10
-36 J/s / 8 * 10-9 kg * 0.1 * 10-5
= 8.28 * 10 -12m
Whereas value is much
more greater than the size of the bacteria it requires Quantum
mechanics.
2. A human with the mass of 59kg, 2m high, moving at 2.8 m/s.
= 6.62607 *
10-36 J/s / 59kg * 2.8 m/s
= 4.01 *10 -34m
Likewise in the before value is less
than the human movement it requires classical mechanics.
3. Mosquito with a mass of 1.0 mg, 9.77 mm long, moving at 1.6 m/s
= 6.62607 *
10-36 J/s / 0.1 *10-5 kg * 1.6 m/s
= 4.1 * 10 -37 m
value is lesser
than the mosquito movement it require classical mechanics.
4. A buckyball with a mass of 1.2 * 10-21g , 0.7nm wide moving at 24 m/s
= 6.62607 *
10-36 J/s / 0.1 *10-19 kg * 24 m/s
= 1.6 * 10-56 m
value is larger
than the buckyball movement it require quantum mechanics.
Imagine an alternate universe where the value of the Planck constant is 6.62607 x 10 J's....
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