(b) (i) The effect of uncertainty principle is significant only for motion of microscopic particles. Justify the statement with the help of a suitable example. (ii) How does the Bohr theory of the hudrogen atom differ from that of Schrodinger ?

(b) (i) The effect of uncertainty principle is significant only for mo

1.	(b) (i) The effect of uncertainty principle is significant only for motion of microscopic particles. Justify the statement with the help of a suitable example. (ii) How does the Bohr theory of the hudrogen atom differ from that of Schrodinger ?
Answer» Solution :(b) (i) If yncertainty principle is applied to an object of mass say about a milligram `(10^(-6) kg)`, then `Delta v Delta x =(h)/(4pim)` `DELTAV. DELTAX =(6.626xx10^(-34)kg m^(2) s^(-1))/(4xx3.14xx10^(-6)kg)` `=0.52xx10^(-28) m^(2) s^(-1)` The value of `Deltav. Deltax` obtained is extremely small and is insignificant . Therefore , for milligram SIZED of heavier objects, the associated UNCERTAINTIES are hardly of any real consequence.