1. The vibrational stretching frequency of diatomic
molecule depends on
(a) Force constant
(b) Masses of two atoms
(c) Both (a) and (b)
(d) None

2. The wave number difference between successive
rotational levels of a rigid diatomic molecule is
(a) 2BJ                                    (b) BJ(J +1)
(c) 2BJ(J +1)                           (d) 2BJ(J ?1)

3. Which of the following absorb IR radiation?
(a) Homonuclear diatomic molecule
(b) Heteronuclear diatomic molecule
(c) Both (a) and (b)
(d) Diatomic molecules will not absorb IR

4. Over tones are mainly observed in
(a) near IR                 (b) mid IR
(c) far IR                    (d) Not in IR region

5. Which of the following cannot be conserved during
Raman scattering?
(a) Total Energy              (b) Momentum
(c) Kinetic Energy           (d) Electronic Energy

6. The Raman spectrum is said to consist of Strokes
lines when _______
(a) ?v > 0
(b) ?v < 0
(c) ?v = 0
(d) Does not depend on ?v

7. Beer Lambert’s law gives the relation between
which of the following?
(a) Reflected radiation and concentration
(b) Scattered radiation and concentration
(c) Energy absorption and concentration
(d) Energy absorption and reflected radiation

8. In which of the following ways, absorption is
related to transmittance?
(a) Absorption is the logarithm of transmittance
(b) Absorption is the reciprocal of transmittance
(c) Absorption is the negative logarithm of
transmittance
(d) Absorption is a multiple of transmittance

9. NMR spectrometer provides _________ and
__________ method of determining structure in
soluble chemical compounds.
(a) Accurate, destructive
(b) Accurate, non- destructive
(c) Inaccurate, destructive
(d) Inaccurate, non-destructive

10. What does “MRI’’ stand for?
(a) Magneto-Ray Idometry
(b) Medical Radiometry Instrument
(c) Magnetic Resonance Imaging
(d) Maximal Radiology Imaging