1. |
A nucleus of mass 1.67 x 10-25 kg emits a γ - ray of 0.1 nm wavelength λ. The linear momentum of a photon is given by h/ λ. Calculate the recoil velocity of the nucleus, the Doppler shift and the frequency/wavelength of the γ - ray to a stationary observer. |
2. |
How do the Mossbauer energy levels of 57Co, 57Fe and 57Fe* get affected by the application of an external magnetic field? |
3. |
Show that the NQR coupling constant corresponds to a frequency. |
4. |
Verify the values of ΔE given in Fig. 15.4. |
5. |
In methane and acetylene, comment on the vibrational/Raman activity of different modes of vibration. |
6. |
How will Fig. 15.7 change when centrifugal distortions are taken into account? |
7. |
Sketch the approximate polarizability ellipsoids of the asymmetric vibration of CO2. |
8. |
Outline the time resolved spectrum of NaI. |
9. |
Taking the bend length of H2 to be 0.7417angstrom, sketch the rotational frequencies in a suitable Spectroscopic method. |
10. |
Predict the mass spectra of the following molecules i) CH3COCH3 2) H2O c) C6HsCONH2 and d) the three pentanes. |
