Trong thí nghiệm Y-âng về giao thoa ánh sáng, khoảng cách giữa hai khe là 2mm, khoảng cách từ hai khe đến màn là 2m. Nguồn S phát ánh sáng trắng có bước sóng từ 380 nm đến 760 nm. Vùng phủ nhau giữa quang phổ bậc hai và bậc ba có bề rộng là ?

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  I usually avoid _________ to parties because I have trouble __________ people's names.
  
  

• Choose the best answer for the following sentence:

  There’s a serious accidents on my way here. Many people were injured but only some __________ to hospital.

• Choose the best answer for the following sentence:

  The teacher as well as her students ____________ stuck in the lift but they were all safe after the police came.
  
  

• Choose the best answer for the following sentence:

  Do you often get your bike _______________ ?
  
  

• Choose the best answer for the following sentence:

  My family is trying ___________ where to spend our holiday.
  
  

• Choose one sentence that has the same meaning to the root one:

  “I have just bought a new bike for you”, said my mother.
  
  

• Choose one sentence that has the same meaning to the root one:

  It was such a boring play that we left the theater in the middle.
  
  

• Choose the best answer for the following sentence:

  With these outstanding pictures he was voted to be the best ___________ of the year.
  
  

• Choose the best answer for the following sentence:

  Five becomes eight by ___________ three.
  
  

• Choose the best answer for the following sentence:

  The people who cannot hear and speak are _________________.