If n = 6, the correct sequence for filling of electrons will be __________

(a)

ns \(\rightarrow\) (n-2)f \(\rightarrow\) (n - 1)d \(\rightarrow\) np

(b)

ns \(\rightarrow\) (n - 1) d \(\rightarrow\) (n - 2) f \(\rightarrow\) np

(c)

ns \(\rightarrow\) (n-2)f \(\rightarrow\)np \(\rightarrow\) (n-1)d

(d)

none of these are correct

How many electrons in an atom with atomic number 105 can have (n + 1) = 8 ? 

(a)

30

(b)

17

(c)

15

(d)

unpredictable

If uncertainty in position and momentum are equal, then minimum uncertainty in velocity is _________

(a)

\(\frac { 1 }{ m } \sqrt { \frac { h }{ \pi } } \)

(b)

\( \sqrt { \frac { h }{ \pi } } \)

(c)

\(\frac { 1 }{ 2m } \sqrt { \frac { h }{ \pi } } \)

(d)

\( { \frac { h }{4\pi } } \)

The ratio of de Broglie wavelengths of a deuterium atom to that of an \(\alpha\) - particle, when the velocity of the former is five times greater than that of later, is ____________

(a)

 4

(b)

0.2

(c)

2.5

(d)

0.4

Time independent Schnodinger wave equation is ______________

(a)

\(\overset { \wedge }{ H } \psi =E\psi \)

(b)

\({ \triangledown }^{ 2 }\psi +\frac { 8{ \pi }^{ 2 }m }{ { h }^{ 2 } } (E+V)\psi =0\)

(c)

\(\frac { { \partial }^{ 2 }\psi }{ { \partial x }^{ 2 } } +\frac { { \partial }^{ 2 }\psi }{ { \partial y }^{ 2 } } +\frac { { \partial }^{ 2 }\psi }{ { \partial z }^{ 2 } } +\frac { { 2m } }{ { h }^{ 2 } } (E-V)\Psi =0\)

(d)

All of these