Mathematical Methods : Exercise Solution : Class 11th Physics Chapter 2 - Maharashtra State Board All Questions and Answers
Standard XI Physics Chapter 2 - Mathematical Methods Exercise Mathematical Methods 1. Choose the correct option. i) The resultant of two forces 10N and 15N acting along the + x and -x axis respectively, is A) 25 N along + x-axis B) 25 N along - x-axis C) 5 N along + x-axis D) 5 N along - x-axis Answer : D) 5 N along - x-axis ii) For two vectors to be equal, they should have the A) same magnitude B) same direction C) same magnitude and direction D) same magnitude but opposite direction Answer : C) same magnitude and direction iii) The magnitude of scalar product of two unit vectors perpendicular to each other is A) zero B) 1 C) -1 D) 2 Answer : A) zero iv) The magnitude of vector product of two unit vectors making an angle 60 degree with each other is A) 1 B) 2 C) 3/2 D) root3/2 Answer : D) root3/2 v) If A, B and C are three vectors, then which of the following is not correct ? A) A. (B + C ) = A. B + A. C B) A. B = ...