The effect of uncertainty principle is significant only for motion of microscopic particles and is negligible for the macroscopic particles. Justify the statement with the help of a suitable example.

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Vishal Baghel | Contributor-Level 10

4 months ago

This is a Short Answer Type Questions as classified in NCERT Exemplar

Ans: The uncertainty principle is significantly only for the microscopic particles and not for the macroscopic particles can be concluded by considering the following example. Let us consider a particle or an object of mass 1 milligram i.e. 10^-6 kg Then its uncertainty can be calculated as,

? x ? v = 6.626 10^-34 / 4x 3.14 $\times$ 10⁶

= 10^-28 m^-2 s^-1

Thus, the value obtained is negligible and insignificant for the uncertainty principle to be applied to this particle.

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