| Electronic Engineering | ||||||||||
| · | A regular movement of something from | |||||||||
| EMAB | ____________________ | |||||||||
| side to side. | ||||||||||
| ERCYQNEFU | ____________________ | · A piece of electrical equipment that | ||||||||
| makes sound louder. | ||||||||||
| TCALINSIOLO | ____________________ | · To provide something that is wanted or | ||||||||
| needed. | ||||||||||
| · A line of light shining from the sun, a | ||||||||||
| FEIMLIAPR | ||||||||||
| ____________________ | lamp etc or a line of light, energy etc | |||||||||
| that you cannot see. |

6. Match the words to make word combinations:
| A | B | C | |
| gain | emission | пространственная когерентность | |
| widespread | radiation | усиление света | |
| electromagnetic | beam | оптический резонатор | |
| light | coherence | активная среда | |
| broad | cavity | широкий спектр первоначальная | |
| stimulated | spectrum | аббревиатура | |
| spatial | acronym | индуцированное излучение | |
| laser | amplification | широкое использование | |
| optical | use | электромагнитное излучение | |
| original | medium | лазерный луч | |

WORD BUILDING: Noun suffixes
| Suffix | Meaning | Example | |||||||
| -ance, -ence | state or quality of | divergence | |||||||
| maintenance | |||||||||
| -er, -or | 1) one who | driver | |||||||
| 2) a device performing an action | amplifier | ||||||||
| -ity, -ty | quality of | veracity | |||||||
| purity | |||||||||
| -ment | condition of | treatment | |||||||
| enforcement | |||||||||
| -sion, -tion | state of being | transition | |||||||
| radiation | |||||||||
7. Add a suitable verb suffix to the following stems and group the words formed according to their meanings modified by the suffixes. Translate the words into Russian:
| radia___ | irradi___ | treat___ |
| diverg___ | confine___ | coher___ |
| oscilla___ | emis___ | amplifica___ |
| amplify___ | designa___ | treat___ |
| develop___ | posi___ | diffrac___ |
| confine___ | puri___ | monochromatici___ |






