MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electromagnetic Theory knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
THE_ANGLE_OF_INCIDENCE_IS_EQUAL_TO_THE_ANGLE_OF_REFLECTION_FOR_PERFECT_REFLECTION._STATE_TRUE/FALSE.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The angle at which the wave must be transmitted in air media if the angle of reflection is 45 degree is$ |
| A. | 45 |
| B. | 30 |
| C. | 60 |
| D. | 90 |
| Answer» B. 30 | |
| 3. |
The_angle_of_incidence_of_a_wave_of_a_wave_with_angle_of_transmission_45_degree_and_the_refractive_indices_of_the_two_media_given_by_2_and_1.3_is$ |
| A. | 41.68 |
| B. | 61.86 |
| C. | 12.23 |
| D. | 27.89 |
| Answer» B. 61.86 | |
| 4. |
For_a_critical_angle_of_60_degree_and_the_refractive_index_of_the_first_medium_is_1.732,_the_refractive_index_of_the_second_medium_is |
| A. | 1 |
| B. | 1.5 |
| C. | 2 |
| D. | 1.66 |
| Answer» C. 2 | |
| 5. |
The critical angle for two media with permittivities of 16 and 9 respectively i? |
| A. | 48.59 |
| B. | 54.34 |
| C. | 60 |
| D. | 45 |
| Answer» B. 54.34 | |
| 6. |
The critical angle for two media of refractive indices of medium 1 and 2 given by 2 and 1 respectively is |
| A. | 0 |
| B. | 30 |
| C. | 45 |
| D. | 60 |
| Answer» C. 45 | |
| 7. |
The critical angle is defined as the angle of incidence at which the total internal reflection starts to occur. State True/False. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
The refractive index of a medium with permittivity of 2 and permeability of 3 is given by |
| A. | 3.56 |
| B. | 2.45 |
| C. | 3.21 |
| D. | 1.78 |
| Answer» C. 3.21 | |
| 9. |
Find the ratio of the refractive index of medium 1 to that of medium 2, when the incident and reflected angles are given by 300 and 450 respectively. |
| A. | 0.5 |
| B. | 1 |
| C. | 2 |
| D. | 4 |
| Answer» D. 4 | |
| 10. |
Calculate the ratio of sine of incident angle to the sine of reflected angle when the refractive indices of medium 1 and 2 are given as 2.33 and 1.66 respectively. |
| A. | 0.71 |
| B. | 1.4 |
| C. | 2 |
| D. | 3.99 |
| Answer» B. 1.4 | |
| 11. |
The Snell’s law is given by$ |
| A. | N1 sin θi = N2 sin θt |
| B. | N2 sin θi = N1 sin θt |
| C. | sin θi = sin θt |
| D. | N1 cos θi = N2 cos θt |
| Answer» B. N2 sin ‚âà√≠‚Äö√†√®i = N1 sin ‚âà√≠‚Äö√†√®t | |
| 12. |
The Snell’s law can be derived from which type of incidence? |
| A. | Incidence angle |
| B. | Reflected angle |
| C. | Refracted angle |
| D. | Oblique incidence |
| Answer» E. | |