A proton in a storage ring is localised laterally within a circular cross-section of…

CHEMISTRY · Multi-part · ISC · Chemistry · Structure of Atom · Dual nature of matter

Problem

A proton in a storage ring is localised laterally within a circular cross-section of diameter 1.0 Å while travelling along the ring. (i) Determine the minimum uncertainty in the proton’s speed along its direction of motion. (Proton mass mp=1.67×10−27 kgm_{p}=1.67\times10^{-27}\,\text{kg}.) (ii) The designed operating speed of the proton is 3.0×105 m s−13.0\times10^{5}\,\text{m s}^{-1}. Decide, with numerical justification, whether the speed uncertainty found in part (i) is significant for accelerator operation.

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