Tools Techniques - Questions & Answers | Exam2Win

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76. Resolution power of scanning electron microscope is

A. 0.0001 nm

B. 0.01 nm

C. 0.1 nm

D. 5 – 20 nm

Explanation:

77. Common method to determine weight of proteins is

A. X-ray diffraction

B. Ultracentrifugation

C. Classical chemistry

D. Both A and C

Explanation:

78. A nanogram is

A. 10⁻⁹ g

B. 10⁻⁹ mg

C. 10⁹ mg

D. 10⁹ g

Explanation:

79. The term microscope was coined by

A. Janssen and Janseen

B. Faber

C. Robert Hooke

D. Leeuwenhoek

Explanation:

80. Electron microscope was invented by

A. Schleiden

B. Zigmondy

C. Knoll and Ruska

D. Schwann

Explanation: