Question

Given : The mass of electron is 9.11 × 10⁻³¹ kg Plank constant is 6.626 × 10⁻³⁴ Js, the uncertainty involved in the measurement of velocity within a distance of 0.1 Å is
(a) 5.79 × 10⁷ ms⁻¹
(b) 5.79 × 10⁸ ms⁻¹
(c) 5.79 × 10⁵ ms⁻¹
(d) 5.79 × 10⁶ ms⁻¹

Answer 1

Option d is correct . hope if helps you