Physics MCQs Quiz for Competitive Exams.This post contains Physics Objective Questions and Answers for NTS, PPSC, CSS, FPSC, PMS, OTS, PTS Tests and Interviews. These Objective Physics Questions and Answers are to prepare online competitive exams. MCQs are taken from Caravan Comprehensive GK Book.
1. Which vectors have zero magnitude and arbitrary direction ?
(A) vectors
(B) null vectors
(C) equal vectors
(D) None of the above.
2. Two vectors having the same magnitude and direction are known as ________ ?
(A) null vectors
(B) equal vectors
(C) Both A & B
(D) None of the above.
3. Addition of Vector obeys which law ?
(A) distributive law
(B) associative law
(C) commutative law
(D) All of the above.
4. There should be how many maximum components of vectors ?
(A) 2
(B) 3
(C) 4
(D) Infinite.
5. Maximum number of rectangular components in vector are ______ ?
(A) 3
(B) 4
(C) 5
(D) all of the above.
6. Scalar product of two vectors is _______ ?
(A) associative
(B) commutative
(C) distributive
(D) None of the above.
7. Scalar product of two mutually perpendicular vectors A.B=AB Cos90. is ______ ?
(A) 0
(B) 1
(C) Both A & B
(D) None of the above.
8. Scalar product of two parallel vectors is equal to the product of their _____ ?
(A) magnitude
(B) direction
(C) Both A & B
(D) None of the above.
9. Direction of vector product is given by _______ ?
(A) thumb impression
(B) right hand rule
(C) left hand rule
(D) None of the Above.
10. Angle between two vectors A & B is determined by _____ ?
(A) Right hand rule
(B) dot product
(C) cross product
(D) None of the above.
11. Which statement perfectly fits on first condition of equilibrium ?
(A) A body at rest or moving with uniform velocity has zero acceleration
(B) angular acceleration to be zero
(C) Both A & B
(D) None of the above.
12. A unit vector has magnitude of _____ ?
(A) 0
(B) 1
(C) 0 & 1
(D) None of the above.
13. A torque is defined as product of force and ______ ?
(A) turning effect
(B) moment of arm
(C) both A & B
(D) None of the Above.
14. Vector addition is ______ ?
(A) cumulative
(B) associative
(C) distributive
(D) None of the Above.
15. S.I derived Unit of torque is _____ ?
(A) newton
(B) force
(C) newton meter (N.M)
(D) None of the above.
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