61. Eye cannot resolve any image less than
a. 1ìm
b. 2ìm
c. 7ìm
d. 5ìm
Ans: D
62. Compound Microscope was discovered by
a. A.V. Lewenhoek
b. Pasteur
c. Janssen and Hans
d. None of these
Ans: C
63. Electron Microscope was discovered by
a. Prof. Fritz
b. Janssen and Hans
c. Knoll and Ruska
d. None of these
Ans: C
64. Magnification range of light microscope is
a. 1000x – 5000x
b. 1000x – 2000x
c. 500x – 1000x
d. None of these
Ans: B
65. Condensation of light in light Microscope is by
a. Objective
b. Condensor
c. Ocular
d. All of these
Ans: B
66. Light gathering capacity of Microscope is called
a. Numerical aperture
b. Angular aperture
c. Both a and b
d. None of these
Ans: A
67. If 10x and 40x objectives are used (air is the medium), the numerical aperture is
a. 1.5
b. 2.0
c. 1.0
d. 1.8
Ans: C
68. The ability of Microscope to distinguish two objects into two separate objects, is called.
a. Resolving power
b. Wave length
c. N.A.
d. None of these
Ans: A
69. Limit of resolution of compound microscope is
a. 0.018 Ao
b. 0.1 mm
c. 5 ìm
d. 1 mm
Ans: B
70. Source of light in fluorescence microscopy is from
a. Mercury lamp
b. Sunlight
c. Both a and b
d. None of these
Ans: A
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a. 1ìm
b. 2ìm
c. 7ìm
d. 5ìm
Ans: D
62. Compound Microscope was discovered by
a. A.V. Lewenhoek
b. Pasteur
c. Janssen and Hans
d. None of these
Ans: C
63. Electron Microscope was discovered by
a. Prof. Fritz
b. Janssen and Hans
c. Knoll and Ruska
d. None of these
Ans: C
64. Magnification range of light microscope is
a. 1000x – 5000x
b. 1000x – 2000x
c. 500x – 1000x
d. None of these
Ans: B
65. Condensation of light in light Microscope is by
a. Objective
b. Condensor
c. Ocular
d. All of these
Ans: B
66. Light gathering capacity of Microscope is called
a. Numerical aperture
b. Angular aperture
c. Both a and b
d. None of these
Ans: A
67. If 10x and 40x objectives are used (air is the medium), the numerical aperture is
a. 1.5
b. 2.0
c. 1.0
d. 1.8
Ans: C
68. The ability of Microscope to distinguish two objects into two separate objects, is called.
a. Resolving power
b. Wave length
c. N.A.
d. None of these
Ans: A
69. Limit of resolution of compound microscope is
a. 0.018 Ao
b. 0.1 mm
c. 5 ìm
d. 1 mm
Ans: B
70. Source of light in fluorescence microscopy is from
a. Mercury lamp
b. Sunlight
c. Both a and b
d. None of these
Ans: A
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