Atomic and Molecular Physics [GATE (Graduate Aptitude Test in Engineering) Physics]: Questions 13 - 17 of 58

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Question 13

Atomic and Molecular Physics

Appeared in Year: 2013

Write in Short

Short Answer▾

The number of spectral lines allowed in the spectrum for the transition in sodium is ________.

Question 14

Atomic and Molecular Physics

Appeared in Year: 2013

Question

MCQ▾

In a normal Zeeman effect experiment, spectral splitting of the line at the wavelength corresponding to the transition od cadmium atoms is to be observed. The spectrometer has a resolution of . The minimum magnetic field needed to observe this is –

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Question 15

Atomic and Molecular Physics

Appeared in Year: 2011

Question

MCQ▾

The lifetime of an atomic state is nanosecond. The natural line width of the spectral line in the emission spectrum of this state is of the order of

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Question 16

Atomic and Molecular Physics

Appeared in Year: 2013

Question

MCQ▾

Consider the scattering of neutron by photons at very low energy due to a nuclear potential of range . Given that,

Where, is the phase shift, the wave number and the logarithmic deviation of the deuteron ground state wave function, the phase shift is –

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Question 17

Appeared in Year: 2013

Question

MCQ▾

The spacing between vibration energy levels in molecule is found to be . Given that the reduced mass of is , Plank՚s constant is and . The force constant of the bond in molecule is –

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