Question11:-The Phenomenon by which an organic compound becomes excited
when oxidised and emit light when it returns to ground state is

A:-Fluorescence
B:-Nephelometry
C:-Phosphorescence
D:-Luminescence
Correct Answer:- Option-D
Question12:-Regarding fluorometry which among these is true
A:-Emission wavelenths are always set at a lower wavelength than excitation
B:-The detector is always placed at right angle to excitation beam
C:-Fluorescence is more sensitive technique than absorption
D:-All of the above
Correct Answer:- Option-D
Question13:-The most sensitive detector in spectrophotometry is
A:-Photomultiplier
B:-Phototube
C:-Photocell
D:-Photodiode array
Correct Answer:- Option-D
Question14:-Which of the following is true about Haemotoxylin and Eosin staining?

A:-Hematoxylin is a basic dye and binds to nucleic acids in the nucleus and
imparts a blue color

B:-Eosin is a basic dye and binds to the nucleic acids in the nucleus and
imparts a blue color

C:-Both 1 and 2 are correct
D:-None of the above
Correct Answer:- Option-A

Question15:-What is the ideal section thickness for preparing routine H and E
stained sections?

A:-1-2 microns

B:-8-10 microns

C:-6-8 microns

D:-3-5 microns

Correct Answer:- Option-D

Question16:-Which among the following is true about reverse phase liquid
chromatography/

A:-Separation is based on charge instead of size