Uncertainty in position of an electron isInm. Calculate its uncertaint

1.	Uncertainty in position of an electron isInm. Calculate its uncertainty in velocity.(Given h=6.626x10-34 Js) (5 401
Answer» We have the relation, (∆x) /(∆v) = h/4πm.........(1) Here, h= 6.626 x 10^-34 JS = 6.626 x 10^-27 erg sec, ∆x= 1 nm = 1x 10^-7 cm We know, m= 9.1x 10^-28 g ∆v = 6.626x 10^-27 erg sec/4 * 3.142 * 9.1 * 10^-28 g * 1× 10^-7 cm = 6.62 * 10^-27 /114.3710^-35 cm/sec = 0.579 10^ 7 cm/sec

Uncertainty in position of an electron isInm. Calculate its uncertainty in velocity.(Given h=6.626x10-34 Js) (5 401

Answer»

We have the relation,

(∆x) /(∆v) = h/4πm.........(1)

Here, h= 6.626 x 10^-34 JS = 6.626 x 10^-27 erg sec, ∆x= 1 nm = 1x 10^-7 cm

We know,

m= 9.1x 10^-28 g

∆v = 6.626x 10^-27 erg sec/4 * 3.142 * 9.1 * 10^-28 g * 1× 10^-7 cm

= 6.62 * 10^-27 /114.37*10^-35 cm/sec

= 0.579 * 10^ 7 cm/sec