MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Analytical Instrumentation knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is a source used in spectroscopy? |
| A. | LASER |
| B. | Tube light |
| C. | Sodium vapour lamp |
| D. | Tungsten lamp |
| Answer» E. | |
| 2. |
Which of the following is the purpose of the beam splitter in double beam photometer or colorimeter? |
| A. | Splits beam into two equal intensity beams |
| B. | Splits beam in such a way that sample beam has higher intensity |
| C. | Splits beam in such a way that a reference beam has higher intensity |
| D. | Merge two equal intensity beams into single beam |
| Answer» B. Splits beam in such a way that sample beam has higher intensity | |
| 3. |
Colorimeters are used to determine the concentration of solutions. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
In the diagram of single beam photometer given below, identify the component that is not marked. |
| A. | Monochromator |
| B. | Absorption filter |
| C. | Sample holder |
| D. | Interference filter |
| Answer» D. Interference filter | |
| 5. |
WHICH_OF_THE_FOLLOWING_IS_THE_PURPOSE_OF_BEAM_SPLITTER_IN_DOUBLE_BEAM_PHOTOMETER_OR_COLORIMETER??$ |
| A. | Splits beam into two equal intensity beams |
| B. | Splits beam in such a way that sample beam has higher intensity |
| C. | Splits beam in such a way that reference beam has higher intensity |
| D. | Merge two equal intensity beams into single beam |
| Answer» B. Splits beam in such a way that sample beam has higher intensity | |
| 6. |
Which of the following is a source used in spectroscopy?$ |
| A. | LASER |
| B. | Tube light |
| C. | Sodium vapour lamp |
| D. | Tungsten lamp |
| Answer» E. | |
| 7. |
Which of the following is the purpose of balance indicator in double beam photometer or colorimeter? |
| A. | Selects particular wavelength |
| B. | Splits the wavelength selected into two equal beams |
| C. | Detects and indicates the amount of light falling on it |
| D. | Indicates the difference between the output of two photometers |
| Answer» E. | |
| 8. |
Colorimeters are used to determine concentration of solutions. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Colorimeters are used in applications where great accuracy is required. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
In photometers, the readings of the specimen are initially obtained in the form of which of the following parameters? |
| A. | Transmittance |
| B. | Absorption |
| C. | Wavelengths |
| D. | Volume |
| Answer» B. Absorption | |
| 11. |
Which of the following is not an application of colorimeter? |
| A. | Paints |
| B. | Inks |
| C. | Cosmetics |
| D. | Composition detection |
| Answer» E. | |
| 12. |
Which of the following statement is false about double beam absorption instruments? |
| A. | It is similar to single beam instruments except two beams are present |
| B. | Tungsten bulb is used as source |
| C. | Reference beam must have higher intensity than sample beam |
| D. | Both the beams after they pass through respective samples are compared |
| Answer» D. Both the beams after they pass through respective samples are compared | |
| 13. |
Which of the following statements is false about single beam absorption instruments? |
| A. | Tungsten bulb is used as source |
| B. | Beam splitter is used to get parallel beam |
| C. | Test tube is used as sample holder |
| D. | Photovoltaic cell as detector |
| Answer» C. Test tube is used as sample holder | |