| # Enem 2013 Question and Answers - English Translation | |
| This document contains the English translations of a question and its answers from the 2023 Enem exam, which were originally in Portuguese. The purpose of this translation is to provide non-Portuguese speakers with an understanding of the question and the provided answers. | |
| ## Question | |
| ``` | |
| It is common on airplane trips to be asked to | |
| turn off devices whose operation involves the emission | |
| or reception of electromagnetic waves, such as cell phones. | |
| The justification given for this procedure is, among other | |
| things, the need to eliminate sources of electromagnetic signals | |
| that might interfere with the pilots' radio communications | |
| with the control tower. | |
| This interference will only occur if the waves | |
| emitted by the cell phone and those received by the airplane's radio | |
| a) are both audible. | |
| b) have the same power. | |
| c) have the same frequency. | |
| d) have the same intensity. | |
| e) propagate at different speeds. | |
| ``` | |
| ## Original Solution | |
| The contents have been translated into English for broader accessibility. | |
| ``` | |
| Solution: | |
| If the aircraft's communication equipment | |
| operates on the same frequency as cell phones, | |
| the phenomenon of interference between the | |
| radio frequencies used by these devices can occur. | |
| Answer: **C** | |
| ``` | |
| ## Canarim-7B-VestibulAide Solution | |
| ``` | |
| For electromagnetic interference to occur in the airplane, | |
| there must be two electromagnetic waves with similar vibrations, | |
| but not identical, that is, there must be two waves with close frequencies. | |
| Correct Answer: **C** | |
| ``` |