GATE (Graduate Aptitude Test in Engineering) Physics: Questions 612 - 616 of 659

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Question 612

Appeared in Year: 2006

Question

MCQ▾

To explain the observed magnetic moment of deuteron , its ground state wavefunction is taken to be an admixture of and states. The expectation value of the component of the magnetic moment in pure and pure states are and respectively. The contribution of the state to the mixed ground state is approximately –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 613

Appeared in Year: 2008

Question

MCQ▾

Which one of the following relation is true for Pauli matrices and ?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 614

Appeared in Year: 2006

Question

MCQ▾

Weak nuclear forces act on –

Choices

Choice (4)Response

a.

All charged particles

b.

All particles

c.

Hadrons only

d.

Hadrons and leptons

Question 615

Appeared in Year: 2006

Question

MCQ▾

In hyperfine interaction, there is coupling between the electron angular momentum and nuclear angular momentum , forming resultant angular momentum . The selection rules for the corresponding quantum number in hyperfine transitions are –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 616

Appeared in Year: 2006

Question

MCQ▾

In hydrogenic states, the probability of finding an electron at is –

Choices

Choice (4)Response

a.

zero in state

b.

non – zero in state

c.

zero in state

d.

zero in state

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