Tools Techniques - Questions & Answers | Exam2Win

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276. A radioactive isotope can be traced because it

A. Emits charged particles

B. Emits light

C. Gives radio waves

D. Sublimes slowly

Explanation:

277. Stop disc is meant for

A. Blocking light

B. Stopping objective in pressing slide

C. Altering light rays

D. Splitting light rays

Explanation:

278. In homogenization the suspension is kept at a temperature of

A. 15 - 20°C

B. 25 - 30°C

C. -4° to 0°C

D. 0° - 4°C

Explanation:

279. An Å is equal to

A. 10⁻⁵ cm

B. 10⁻⁶ cm

C. 10⁻⁷ cm

D. 10⁻⁸ cm

Explanation:

280. Metabolic processes can be studied by means of

A. Light/compound microscope

B. Autoradiography

C. Phase-contrast microscope

D. Electron microscope

Explanation: