Chiếu vào 2 khe hẹp trong thí nghiệm Y-âng một ánh sáng đơn sắc có bước sóng 0,4 μm thì thấy ở điểm M trên màn quan sát có vân sáng bậc 5. Nếu chiếu một chùm ánh sáng trắng có bước sóng từ 0,38 μm đến 0,76 μm thì tại M có bao nhiêu vân sáng của các ánh sáng đơn sắc trùng nhau?

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  My friend often shows her ______________ whenever I have troubles.
   

• Choose the best answer for the following sentence:

  Daisy is so ____________. She only cares about herself, not about other people.
   

• Choose the best answer for the following sentence:

  John left a _______________ impression on me. I will never forget him.
  
  

• Choose the best answer for the following sentence:

  Two friends should be loyal _____________ each other.
   

• Choose the best answer for the following sentence:

  The teacher never lets us ______________out when _______________.
   

• Choose the best answer for the following sentence:

  Whenever I see an action film, I feel my heart ______________ strongly.
  
  

• Choose the best answer for the following sentence:

  He was the first _____________ the fire.
  
  

• Choose the best answer for the following sentence:

  He is _____________ everybody in my class likes him.
   

• Choose the best answer for the following sentence:

  John was ____________________ we all want to make friends with him.
   

• Choose the correct sentence which is built from the words and phrases given:

  he / good-looking / blond hair