Trong thí nghiệm giao thoa ánh sáng của Young, chiếu ánh sáng đơn sắc vào hai khe S₁ và S₂ thì khoảng vân đo được là 1,32 mm. Biết độ rộng của trường giao thoa trên màn bằng 1,452 cm. Số vân sáng quan sát được là:

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  It is a good book. I think it is interesting enough for you to _____________.
   

• Choose the best answer for the following sentence:

  Those letters ______________ now. You can do the typing later.
   

• Choose the best answer for the following sentence:

  The museum is open to everybody. It _____________ between 9am and 5pm.
   

• Choose the best answer for the following sentence:

  The train ____________ by bad weather. I am not sure.
   

• Choose the best answer for the following sentence:

  The room ___________ once a day.
   

• Choose the best answer for the following sentence:

  Two tablets _____________ twice a day to have you recover from the illness quickly.
   

• Choose the best answer for the following sentence:

  Theresa walked past me without saying a word. She _________________ me.
   

• Choose the best answer for the following sentence:

  I think the match _____________. Everybody’s gone into the stadium and you can hear them cheering.
   

• Choose the best answer for the following sentence:

  We found the exam extremely easy. We _______________ so hard.
   

• Choose the best answer for the following sentence:

  The picnic _______________ because Peter has just had a traffic accident.