MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the time period of visible light for which human eye is most sensitive? |
| A. | 1.85 10<sup>15</sup> s |
| B. | 1.85 10<sup>-15</sup> s |
| C. | 3 10<sup>8</sup>s |
| D. | 5 10<sup>16</sup> s |
| Answer» C. 3 10<sup>8</sup>s | |
| 2. |
Microwaves can t be used for long-distance transmission of signals. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
For which frequency of light, the human eye is most sensitive? |
| A. | 55.405 10<sup>14</sup> Hz |
| B. | 95.405 10<sup>14</sup> Hz |
| C. | 5.405 10<sup>14</sup> Hz |
| D. | 79.405 10<sup>14</sup> Hz |
| Answer» D. 79.405 10<sup>14</sup> Hz | |
| 4. |
Is the ratio of frequencies of UV rays and IR rays in the glass more than, less than or equal to 1? |
| A. | Insufficient data |
| B. | Equal to 1 |
| C. | Less than 1 |
| D. | More than 1 |
| Answer» E. | |
| 5. |
Which basic oscillatory circuit is used these days to produce electromagnetic waves? |
| A. | LC oscillatory circuit |
| B. | LCR circuit |
| C. | Inductive circuit |
| D. | Capacitive circuit |
| Answer» B. LCR circuit | |
| 6. |
What is the velocity of electromagnetic wave in free space? |
| A. | c = <sub>0</sub> <sub>0</sub> |
| B. | c = ( frac {1}{ sqrt { mu_0 varepsilon_0}} ) |
| C. | c = ( frac {1}{ mu_0 varepsilon_0} ) |
| D. | c = <sub>0</sub> <sub>0</sub> |
| Answer» C. c = ( frac {1}{ mu_0 varepsilon_0} ) | |
| 7. |
What is the ratio of the speed of infrared and ultraviolet rays in a vacuum? |
| A. | 1:5 |
| B. | 2:1 |
| C. | 1 |
| D. | 0 |
| Answer» D. 0 | |