Предмет: Физика, автор: bodyanyuk

1. Посилення світлових коливань
2. Інтерференція від різних джерел
3. Стійка інтерференціона картина
4. Ослаблення світлових коливань
А) Спостерігається в тих точках країни, куди хвилі приходять у протифазі.
Б) Спостерігається в тих точках країни, куди хвилі приходячи в однаковій фазі.
В) Спостерігається поблизу країв перешкод і малих отворів.
Г) Спостерігати інтерференцію світлових хвиль не вдається.
Д) Спостерігається, коли складаються хвилі з однаковою довжиною хвилі та узгоджені по фазі.

Ответы

Автор ответа: bilanskijsasa77

Ответ:

1. Г

2. В

3. Д

4. Б

...........

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2 задание

Grammar

When my brother and I were small, our parents spent a lot of time with us. They believed that _1__________

should learn something new every day and every hour. CHILD

A weekend in our family meant that our parents woke us up even __2______

than on weekdays. We had breakfast and set off to see some place of interest, or museum, or exhibition. EARLY

Usually they didn't ask us where we wanted to go. It was _3______

decision. THEY

One day they told us that we ____4_________

to visit a historical museum which was a good distance away from the city. The day was cold and gloomy. GO

The sky ____5_____________

with heavy dark clouds. But the weather didn't make our parents change their plan. COVER

"Are you ready to go?" Dad asked. "Mum ___6____________

the sandwiches for us already. In case we get hungry and there's no cafe nearby." PACK

"And what will we do if it ___7___________

?" my brother asked quietly. "Getting wet is not a problem," Dad replied. RAIN

"I'm sure you understand that visiting a museum is much __8_______

for you than watching TV at home." My brother and I sighed. The film we wanted to

see so much was on TV on that very day. We looked at each other and decided that we needed a plan ... GOOD

Use of English

Missed, lost, however, to, although, for, since

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