Light Microscope

 

 DOWNLOAD ALL  PDF E-BOOK's    >>>CLICK HERE<<<

Light Microscope

Question 1
Total Magnification is obtained by.....
A
Magnifying power of the objective lens
B
Magnifying power of eyepiece
C
Magnifying power of condenser lens
D
Magnifying power of both the objective lens and eyepiece

Question 2
What is the minimum distance for the eye to focus any object?
A
11 cm
B
25 cm
C
32 cm
D
4 2 cm

Question 3
Resolving power of a microscope is a function of.....
A
Wavelength of light used
B
Numerical aperture of lens system
C
Refractive index
D
Wavelength of light used and numerical aperture of lens system

Question 4
In Phase contrast microscopy, the rate at which light enters through objects is.....
A
Constant
B
Inversely proportional to their refractive indices
C
Directly proportional to their refractive indices
D
Exponentially related to their refractive indices

Question 5
Oil immersion objective lens has an NA value of.....
A
0.65
B
0.85
C
1.33
D
1

Question 6
Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed?
A
Eyepiece lens
B
Objective lens
C
Condenser lens
D
Magnifying lens

Question 7
Which part of the light microscope controls the intensity of light entering the viewing area?
A
Coarse adjustment screw
B
Fine adjustment screw
C
Diaphragm
D
Condenser lens

Question 8
In fluorescence microscopy, which of the following performs the function of removing all light except the blue light?
A
Exciter filter
B
Barrier filter
C
Dichroic mirror
D
Mercury arc lamp

Question 9
In light microscopy, which of the following is used as fixatives prior to staining technique?
A
Osmic acid
B
Glutaraldehyde
C
Heat
D
Osmic acid, glutaraldehyde, heat

Question 10
The greatest resolution in light microscopy can be obtained with .....
A
Longest wavelength of visible light used
B
An objective with minimum numerical aperture
C
Shortest wavelength of visible light used
D
Shortest wavelength of visible light used and an objective with the maximum numerical aperture
There are 10 questions to complete.

 

 DOWNLOAD ALL  PDF E-BOOK's    >>>CLICK HERE<<<