The uncertainties in measurement of position and momentum of an electron are equal…
Chemistry · JEE Advanced · NTA Exams — Atomic Structure
The uncertainties in measurement of position and momentum of an electron are equal. Choose the correct statement.
- The uncertainty in measurement of speed = 8 × 1012.
- The uncertainty in measurement of kinetic energy = \(\frac{\mathrm{h}}{8 \pi \mathrm{~m}} .\)
- The uncertainty in measurement of time = 9.1 × 10–31.
- Increasing the wavelength of light used in the experiment will decrease uncertainty in position and increase the uncertainty in momentum.
Answer
(A) The uncertainty in measurement of speed = 8 × 10 12 ., (B) The uncertainty in measurement of kinetic energy = h 8 ~m ., (C) The uncertainty in measurement of time = 9.1 × 10 –31 .
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