MHT CET2011ChemistryStructure of Atom
Uncertainty in the position of an electron (mass =9.1 10⁻³¹ ~kg ) moving with a velocity 300 ~ms ⁻¹ accurate upon 0.001 % will be (h=6.63 10⁻³⁴ ~J - s )
Options
- A19.2 10⁻² ~m
- B5.76 10⁻² ~m
- C1.92 10⁻² ~m
- D3.84 10⁻² ~m
Correct answer
C. 1.92 10⁻² ~m
Step-by-step solution
x v h 4 m aligned x=& 6.63 10⁻³⁴ 4 3.14 9.1 10⁻³¹ 300 & 0.001 10⁻² =& 0.01933=1.93 10⁻² aligned