MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A radio station broadcasts its programme at 219.3 metre wavelength. Determine the frequency of radio waves if velocity of radio waves is 3 108 m/s. |
| A. | 7.31 10<sup>-7</sup> Hz |
| B. | 1.954 10<sup>-6</sup> Hz |
| C. | 1.368 10<sup>6</sup> Hz |
| D. | 6.579 10<sup>10</sup> Hz |
| Answer» D. 6.579 10<sup>10</sup> Hz | |
| 2. |
Which of the following is associated with an electron microscope? |
| A. | Matter waves |
| B. | Electrical waves |
| C. | Magnetic waves |
| D. | Electromagnetic waves |
| Answer» B. Electrical waves | |
| 3. |
Which of the following is called as non-mechanical waves? |
| A. | Magnetic waves |
| B. | Electromagnetic waves |
| C. | Electrical waves |
| D. | Matter waves |
| Answer» C. Electrical waves | |
| 4. |
Wien s displacement law holds good only for shorter wavelength. |
| A. | False |
| B. | True |
| Answer» C. | |
| 5. |
Rayleigh-Jean s law holds good for which of the following? |
| A. | Shorter wavelength |
| B. | Longer wavelength |
| C. | High temperature |
| D. | High energy |
| Answer» C. High temperature | |
| 6. |
The energy distribution is not uniform for any given temperature in a perfect black body. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Which of the following is the characteristic of a black body? |
| A. | A perfect absorber but an imperfect radiator |
| B. | A perfect radiator but an imperfect absorber |
| C. | A perfect radiator and a perfect absorber |
| D. | A perfect conductor |
| Answer» D. A perfect conductor | |