Trong các ánh sáng đơn sắc sau đây, ánh sáng nào có khả năng gây ra hiện tượng quang điện mạnh nhất?         

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  Many of the fascinating features of desert plants are ____________.
   

• Choose the best answer for the following sentence:

  There was a time when I couldn't get to the top of the class, ____________ hard I worked.
   

• Choose the best answer for the following sentence:

  Sorry that I can't join the picnic; I'm busy. ____________, I don't have any money after buying all these stuffs.
   

• Choose the best answer for the following sentence:

  He's the best boss I've ever had. ____________, he always buys everyone a present on their birthdays.
   

• Choose the best answer for the following sentence:

  It's difficult to think of anything nice to say about my neighbor's naughty boys, ____________, they are at least honest.
   

• Choose the word that has the underlined part pronounced differently from the rest:

  three              south               southern                    both

   

• Choose the word that has the underlined part pronounced differently from the rest:

  remained                explored                 separated                    travelled

• Choose the word that has the underlined part pronounced differently from the rest:

  loose             smooth               food                   flood

• Choose the word that has the underlined part pronounced differently from the rest:

  enormous               rough                 enough                 double

• Choose the word that has the underlined part pronounced differently from the rest:

  society              geography                 dry                 sandy