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Dual Nature of Radiation and Matter — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsDual Nature of Radiation and Matter1 Mark
Question
Which of the following systems may be adequately described by classical physics?
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Answer

The formulation or rules of classical physics are quite accurate for heavy bodies having finite velocities like the planets, vehicles etc. For particle much smaller than $10^{−6}m ($such as atoms, nuclei etc.$)$ these rules do not work well.

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