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Class 11PhysicsChapter-3

Motion in 2D & Vectors

Question 55 of 212

55MediumJEE Mains2021

Statement I : Two forces $\left( {\overrightarrow P + \overrightarrow Q } \right) and \left( {\overrightarrow P - \overrightarrow Q } \right) where \overrightarrow P \bot \overrightarrow Q , when act at an angle \theta 1 to each other, the magnitude of their resultant is \sqrt {3({P^2} + {Q^2})} , when they act at an angle \theta 2 , the magnitude of their resultant becomes \sqrt {2({P^2} + {Q^2})} . This is possible only when {\theta _1} < {\theta _2}. Statement II : In the situation given above. \theta 1 = 60^\circ and \theta 2 = 90^\circ$ In the light of the above statements, choose the most appropriate answer from the options given below :-

Choose the correct answer: