MCQ ON MICROSCOPY PDF | MCQ ON PHASE CONTRAST MICROSCOPY | SCANING ELECTRON MICROSCOPY QUESTIONS AND ANSWERS PDF

 

MCQ ON MICROSCOPE

B PHARM SECOND YEAR 3^TH SEMESTER MCQ

MULTIPLE CHOCE QUESTIONS ON PHASE CONTRAST MICROSCOPE

MCQ ON PHASE CONTRAST MICROSCOPY

MCQ ON DARKFIELD MICROSCOPY

MCQ ON ELECTRON MICROSCOPY

1. The scientist who invent electron microscope?

  A) J.J Thompson 
B) Ernst Ruska
C) Otto van boris
D) Robert Koch

... Answer is B)
Ernst Ruska "

2.Thin section of specimen is necessary in transmission electron microscope Why?

A) Electron are negatively charged
B) Electron have no mass
C) Electron have poor poor penetrating power.
D) None of the above.

... Answer is C)
Electron have poor poor penetrating power. .

3. Scanning electron microscopy is most often used to reveal __________.

A) Surface structures
B) Internal structures
C) Both surface and internal structures simultaneously
D) Either surface or internal structures, but not simultaneously

... Answer is B)
Internal structures

4. Which of the following types of microscopy would be the most effective in visualizing the live microbe?

A) bright-field microscopy
B) dark-field microscopy
C) phase-contrast microscopy
D) scanning electron microscopy

... Answer is D)
scanning electron microscopy "

5. The instrument that produces a bright image of the specimen against a dark background is called __________ microscope.

A) phase-contrast
B) scanning electron
C) bright-field
D) dark-field

... Answer is D)
dark-field .

6.Which of the microscopes below is usually good for use on unstained specimens?

A) Phase-contrast
B) Bright-field
C) Scanning electron
D) Transmission electron

... Answer is A)
phase-contrast .

7. Which of the following is used in electron microscope?

A) Electron beams
B) Magnetic fields
C) Light waves
D) Electron beams and magnetic fields

... Answer is D)
Electron beams and magnetic fields

8.Electron Microscope can give a magnification up to ___________

A) 400,000X
B) 100,000X
C) 15000X
D) 100X

... Answer is A)
400,000X .

9. Which among the following helps us in getting a three-dimensional picture of the specimen?

A) Transmission Electron Microscope
B) Scanning Electron Microscope
C) Compound Microscope
D) Simple Microscope

... Answer is B)
Scanning Electron Microscope .

10. Where do we obtain the magnified image of the specimen in SEM?

A) Cathode ray tube
B) Phosphorescent screen
C) Anode
D) Scanning generator
a) cathode ray tube b) phosphorescent screen c) anode d) scanning generator

... Answer is A)
Cathode ray tube "

11. Which instruments is more useful to study the surface details of specimen?

  A) Bright-field microscope 
B) Dark-field microscope
C) Phase-contrast microscope
D) Scanning electron microscope

... Answer is D)
Scanning electron microscope "