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### Question Asked by a Student from EXXAMM.com Team

** Q 2612780639. ** An electron having velocity `2 xx 10^6 m//s` has uncertainty in kinetic energy is `(6.62)/pi xx10^(-21) J` then calculate the uncertainty in position (in Angstrom `A^0` ) of the electron. [Given `h = 6.62 xx 10^(-34)` J-sec]