The position and momentum of a 3.01 keV electron are simultaneously determined. If its position is...
1) The uncertainty in momentum of an electron with a kinetic energy of approximately 3 keV is 2 percent. What is the minimum uncertainty in its position?
An electron has a momentum p? 1.9×10?25 kg?m/s. What is the minimum uncertainty in its position that will keep the relative uncertainty in its momentum (?p/p) below 2.0%? Answer is in nm
5) Consider an electron located on the x-axis such that the uncertainty in its position is 1.00 Angstrom. What is the minimum uncertainty in its momentum along the x axis? Give the answer in units of (kg m)/sec 6) If the work function of a metal is 2.00 x 10-19 J, what is the frequency of the light required to just eject an electron from the metal, that is, such that the ejected electron has zero kinetic energy? Give the...
1. The Heisenberg Uncertainty Principle states that it is impossible to simultaneously determine both the momentum of an electron and its position in space. Why not? (Don't just re-state the Principle.)
An electron has a momentum p≈ 1.7×10−25 kg⋅m/s. What is the minimum uncertainty in its position that will keep the relative uncertainty in its momentum (Δp/p) below 2.0%? Place final answer in 2 significant figures and convert answer to nanometers. The answer is NOT 15nm or 16nm from: x = h / [(4pi)(2%)(p)] = (6.626×10−34) / [(4pi)*(0.02)(1.7x10−25)]) = 15.5nm. Do not write this as the answer.
An electron has a speed of 1.4E7 m/s. If an uncertainty 65 nm in its potition is acceptable, what is the minimum possible percentage uncertianty in its linear momentum?
An electron has a momentum py = 2.10 × 10 − 25 kg.m/s. What is the minimum uncertainty in its position that will keep the relative uncertainty in its momentum (Δpy/p) below 2.5%?
if certainty of the position of the electron.....
MOspecul TUDI 2115 Welly Umy CUTION), WN, D UI. Hint: solve for (a) if uncertainty in the position of an electron is 1 nm, calculate the uncertainty in its momentum, and its velocity. (b) if uncertainty in time of measuring this electron is 1 ns, calculate the uncertainty in its energy. (c) How reasonable do you think these values are?
h where ħ=__=1.054 x 10-34 Js 27 Uncertainty principle Question) Uncertainty in position of an electron is 1 nm. Estimate the minimum uncertainty in momentum and the corresponding kinetic energy.
3) Suppose the instantaneous position of an electron of an electron moving along the x-axis is 10 A. The velocity of electron is 10sm/s. What is the minimum uncertainty in momentum? In velocity?, In kinetic energy? (Use your uncertainty relations)