The cross product i^ x j^ is equal to:
A. Zero
B. One
C. i^
D. k
Which one is not correct for a vector A= 2i+2j+3k:
A. Has direction 45° with an x-axis
B. Has magnitude 2
C. Has magnitude 2 and direction °=45°
D. Has magnitude -2
The direction of the vector product is given by:
A. Head to tail rule
B. Right-hand rule
C. Left-hand rule
D. Triangular rule
I ^. (j^ x k^) is equal to:
A. 1
B. i^
C. j^
D. k^
If A=B, which of the following is not correct:
A. A.B = A^ B^
B. |A| = |B|
C. |A^| = |B^|
D. AB^ = BA^
In which quadrant the two rectangular components of a vector have same sign:
A. 1st
B. 2nd
C. Both 1st and 3rd
D. 4th
What is the angle that the given vector makes with y-axis and A=2i+3j:
A. 30°
B. 60°
C. 90°
D. 120°
A central force is that which:
A. Can produce torque
B. Cannot produce torque
C. Some time
D. Has no relation with torque
A body will be in complete equilibrium when it is satisfying:
A. 1st condition of equilibrium
B. 2nd condition of equilibrium
C. Both Ist and 2nd condition of equilibrium
D. Impossible
A body in equilibrium:
A. Always at rest
B. Always in uniform motion
C. May be at rest or in uniform motion
D. May be at rest or in motion
