**1121. A scalar is a physical quantity which is completely specified by :**

A. Direction only

**B. Magnitude only ***

C. Both magnitude and direction

D. None of these

**1122. Vectors are those physical quantities which requires :**

A. Magnitude

**B. Magnitude and directions ***

C. Direction

D. None of these

**1123. Which of the following is a scalar quantity ?**

**A. Density ***

B. Displacement

C. Torque

D. Weight

**1124. Which of the following is an axis at right angle to both x and y xes and points in space ?**

A. Unit vector axis

B. Zero vector axis

**C. Z-axis ***

D. None of these

**1125. Two powers of 10N a 15N are acting all the while on an item in a similar heading . The end result is:**

A. Zero

B. 5N

**C. 25N ***

D. 15N

**1126. The vector product of two vectors is zero when :**

**A. Their lines run parallel to one another ***

B. They are equal vectors

C. They are perpendicular to each other

D. They are inclined at ange of 60 degree

**1127. Position vector is a vector, which describes the :**

**A. Location of a point with respect to origin ***

B. location of a point with respect to any point

C. Location of a point with respect to some related point

D. None of these

**1128. Two vectors AB and BC act on point B at right angle to each other . The magnitude of their resultant is 13 and the magnitude of BC is 12the magnitude of AB is ?**

A. 24

b. 7

**C. 5 ***

D. 2

**1129. Which of the following is likely to be the rectangular force components of 10 Newton?**

**A. 6 and 8 Newton ***

B. 2 and 5 Newton

C. 3 and 5 Newton

D. None of these

**1130. The scalar product of two parallel vector is of :**

A. Maximum value

**B. Minimum Value ***

C. Zero

D. Sume of vectors