Question

Maximum and minimum magnitudes of the resultant of two vectors of magnitudes P and Q are in the ratio 3 : 1Which of the following relations is true

• A. P =2Q
• B. P =Q
• C. PQ=1
• D. None of these

Answer 1

The correct option is A P =2Q

According to problem P +Q and P -Q =1 By solving we get P =2 and Q=1 $\therefore \frac{P}{Q}=2\Rightarrow P=2Q$