MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Biomedical Instrumentation knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
_______ are optical systems, which provide better isolation of spectral energy than the optical filters. |
| A. | Spectromators |
| B. | Monochromators |
| C. | Tocochromators |
| D. | Baromators |
| Answer» C. Tocochromators | |
| 2. |
The expression relating the wavelength of the radiation and the angle (q) at which it is reflected is given by _________ |
| A. | ml = 2d sin q, where l= lambda |
| B. | m = 2d sin q |
| C. | ml = d sin q, where l= lambda |
| D. | m = d sin q |
| Answer» B. m = 2d sin q | |
| 3. |
The transmittance of interference filters varies between ________ % with a spectral bandwidth of 10 to 15 nm. |
| A. | 15 to 20 % |
| B. | 20 to 60 % |
| C. | 10 to 20 % |
| D. | 15 to 60 % |
| Answer» E. | |
| 4. |
Which of the following is the dielectric? |
| A. | MgF3 |
| B. | ZnF2 |
| C. | ZnS |
| D. | ZnF3 |
| Answer» D. ZnF3 | |
| 5. |
The absorption type optical filter usually consists of coloured glasses, gelatin etc. and solutions of the coloured substances. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Modern instruments use ________ light source in calorimeters and spectrophotmetry. |
| A. | Xenon-mercury lamp |
| B. | Tungsten-halogen lamp |
| C. | Mercury arc |
| D. | Deuterium discharge lamp |
| Answer» C. Mercury arc | |
| 7. |
What are the wavelengths of quartz and fused silica respectively in a hydrogen discharge lamp? |
| A. | 200 nm, 185 nm |
| B. | 200 nm, 145 nm |
| C. | 185 nm, 200 nm |
| D. | 145 nm, 200 nm |
| Answer» B. 200 nm, 145 nm | |
| 8. |
In the radiation source, for work in the ultraviolet region, a _______ is used. |
| A. | Tungsten lamp |
| B. | Xenon-mercury arc |
| C. | Deuterium discharge lamp |
| D. | Hydrogen arc |
| Answer» D. Hydrogen arc | |
| 9. |
What is the most common and convenient source of light? |
| A. | Xenon-mercury arc |
| B. | Hydrogen discharge lamp |
| C. | Neon-xenon arc |
| D. | Tungsten lamp |
| Answer» E. | |
| 10. |
Which system may include lenses, mirrors, slits, diaphragm etc? |
| A. | Radiant system |
| B. | Optical system |
| C. | Cardiac system |
| D. | Photo system |
| Answer» C. Cardiac system | |