Correct Answer:- Option ®
QuestionS8:-A linear molecule has
‏303ھ‎
‎8:34
‏عمق‎
‎5:3-6

Correct Answer: Option-C

normal modes of vibrations

‘QuestionS9:-In the rotational Raman spectrum of 0, , the spacing between two successive spectral lines is

8ھ
28
‎೦48‏
‏0:28
‎Correct Answer:- ೦೧000,‏

‘Question60:-The band transitions represented by (0,0), (0.1), (0.2), (0,3).

J" progression

J" progressions
CV" progressions
D:V" progressions

Correct Answer: Option-D

in the electronic spectra of diatomic molecules are called

Question61:-If a nucleus has mass number A is even and atomic number Z is odd, then that nucleus has a spin

وميم
‎Bs-Integer‏
‎CoHalf integer‏
‎D-None of these‏

Correct Answer: Option ®

‘Question62:-An NMR signal for a compound is found to be 200 Hz downward from TMS peak using a spectrometer operating at 50 MHz. What is its chemical shift in ppm

കെ
B:-10 ppm
‏جم کی‎
De ppm

Correct Answer: Option-D

Question63:-In Méssbauer spectroscopy, the emitting and absorbing nuclei are bound in crystal lattice in order to reduce

‘Ac Absorption frequency
B:-Emission frequency
Recoil energy

Di- None of these

Correct Answer: Option-C

Question64::Which of the following is a characteristic of stimulated emission

‘AMultiplication of photons

Belt is controllable from outside

‎produced propagates in the same direction of stimulating photon‏ یں

‎D:-All of the above

‎Correct Answer: Option-D

‎‘Question65:-In passive Q-switching of lasers, which of the following is used as the attenuator

‎‘AcShutter
‎B:-Semiconductor
‎11
‎D=Chopper whee!

‎Correct Answer: Option ®