GATE (Graduate Aptitude Test in Engineering) Physics: Questions 147 - 150 of 659
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Question 147
Appeared in Year: 2012
Question
MCQ▾A Ge semiconductor is doped with acceptor impurity concentration of . For the given hole mobility of the resistivity of this material is –
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Question 148
Appeared in Year: 2012
Question
MCQ▾The ground state wave function for the hydrogen atom is given by , where is the Bohr radius. The plot of the radial probability density, for the hydrogen atom in the ground state is –
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Question 149
Appeared in Year: 2012
Question
MCQ▾A plane electromagnetic wave traveling in free space is incident normally on a glass plate of refractive index . If there is no absorption by the glass, its reflectivity is –
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Question 150
Appeared in Year: 2012
Question
MCQ▾Consider the wavefunction for a ferromagnetic system consisting of two spin – half particles. The spatial part of the wavefunction is given by –
Where, and are single particle states.
The spin part of of the wavefunction with spin states and should be –
Choices
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