AP (Advanced Placement) Physics(BC): Questions 674  677 of 920
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Question number: 674
Question
What is the separation between two slits for which light has its second maximum at an angle of ?
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e.  Question does not provide sufficient data or is vague 

Question number: 675
Question
Three identical charges are located on the vertex of an equilateral triangle of side . What is the amount of work done to assemble charges in triangular arrangement?
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e.  Question does not provide sufficient data or is vague 

Question number: 676
Question
A uniform rod of mass and length , balances horizontally, when the pivot placed at midpoint of rod. When an unknown object is hanged on right end of the rod, the pivot must be move right side from the midpoint of the rod. What is the approximate mass of unknown object?
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e.  All of the above 

Question number: 677
Question
If the decay constant of radioactive isotope is , then what is the half – life of this radioactive isotope?
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e.  All of the above 
