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Father of Microbiology*
Robert Koch
Louis Pasteur’s
Edward Jenner
Antonie van Leeuwenhoek
In light / Compound Microscope*
Object is brightly illuminated
Background is brightly illuminated
Both A & B are Correct
None of the above
Condenser used to*
Adjust the intensity of light rays
Focuses the light into a sharp cone on the object
Both A & B are Correct
Magnifies the object
Diaphragm used to*
Control the amount of light rays passes through
Magnify the object
Both A & B are Correct
None of the above
Numerical aperture refers to*
Size of the cone of light that enters the objective lenses
Size of the cone of light that enters the eye piece
Both A & B are Correct
None of the above
What is Resolving power of microscope?*
Magnification of object
Produce separate images of closely placed objects
Both A & B are Correct
None of the above
What is Refractive Index?*
Light rays to pass through the lenses
Light rays to pass away the lenses
Measures the light bending ability of a medium
All the above are correct
In light microscope Objective lens capture*
Transmitted light from the object
Reflected light form the object
Un-diffracted light form the object
None of the above
Images produced in light microscope*
Real Image
Virtual image
Both Real & Virtual image
None of the above
Eye piece in light microscope further magnifies the*
Object
Real image
Both A & B are Correct
None of the above
Image which is observed by the observer in light microscope*
Real Image
Virtual image
Real & Virtual image
None of the above
Image produced in light microscope is not seen by the observer*
Real Image
Virtual image
Both A & B are correct
None of the above
Fine adjustment of light microscope is*
Used during high power objective lens in focus
Used during oil immersion objective lens in focus
Used only during low power objective lens in focus
Both A & B are correct
Why oil is not used in low and high power objective lenses of light microscope*
No refractive index occur
Both the low and high power lenses have wider opening to capture maximum light rays to pass through
Both A & B are correct
None of the above
Maximum magnification of object in light microscope*
100X
500X
1000X
1500X