A) \[1\, \times \, 1{{0}^{6}}cm {{s}^{-}}^{1}\]
B) \[1\, \times \, 1{{0}^{5}}\,cm {{s}^{-}}^{1}\]
C) \[1\, \times \, 1{{0}^{11}}\,cm {{s}^{-}}^{1}\]
D) \[1.1\, \times \, 1{{0}^{9}}\,cm {{s}^{-}}^{1}\]
Correct Answer: D
Solution :
\[\Delta x\cdot \,\,\Delta u=\frac{h}{4\pi m}\] \[\Delta p=1\times {{10}^{-18}}\,g\,\,cm\,\,{{\sec }^{-1}}\] \[m\times \Delta u= 1 \times 1{{0}^{-}}^{18}\] \[\therefore \,\,\,\,\Delta u=\frac{1\times {{10}^{-18}}}{9\times {{10}^{-28}}}\,\,=\,\,1.1\times {{10}^{9\,}}cm\,\,{{\sec }^{-1}}\]
You need to login to perform this action.
You will be redirected in
3 sec
