Basic Science : Tools Techniques QUESTIONS AND ANSWERS :: part3 : 16 to 20
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
16.Magnification of a microscope having objective lens of 45 X and eye piece of 15 X would be |
| 350 X |
| 675 X |
| 2275 X |
| 1475 X |
17.Detailed structure of biological molecules can be known with the help of |
| Atomic force microscope |
| Scanning probe microscope |
| Scanning tunneling microscope |
| All the above |
18.The classroom technique used in separating different photosynthetic pigments from a pigment solution is |
| Paper chromatography |
| Column chromatography |
| Partition chromatography |
| Thin layer chromatography |
19.A radioactive isotope can be traced because it |
| Emits charged particles |
| Emits light |
| Gives radio waves |
| Sublimes slowly |
20.Stop disc is meant for |
| Blocking light |
| Stopping objective in pressing slide |
| Altering light rays |
| Splitting light rays |
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