NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

The magnitude of a vector can never be

• Zero A
• Negative B
• Positive C
• Absolute D

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  D

• 0 A
• -2 B
• 1 C
• 4 D

• 
  A
• 
  B
• 
  C
• 
  D

The equation of the normal to the circle x²+ y²= 25 at(4, 3) is

• 3x - 4y = 0 A
• 3x - 4y = 5 B
• 4x + 3y = 5 C
• 4x + 3y = 25 D

• 
  A
• 
  B
• 
  C
• 
  D

A line segment whose end points lie on a circle is called

• The secant of the circle A
• The arc of the circle B
• The chord of the circle C
• The circumference of the circle D

The circle (x-2)²+ (y+3)²= 4 is not concentric with the circle

• (x-2)²+ (y+3)²= 9 A
• (x+2)²+ (y-3)²= 4 B
• (x-2)²+ (y+3)²= 8 C
• (x-2)²+ (y+3)²= 5 D

The set of complex numbers forms a group under the binary operation of

• Addition A
• Multiplication B
• Division C
• Subtraction D

• A < G < H A
• A > G > H B
• A < G > H C
• A > G < H D

6 is

• A prime integer A
• An irrational number B
• A rational number C
• An odd integer D

In general matrices do not satisfy

• Commutative law w.r.t multiplication A
• Associative law w.r.t addition B
• Distributive law w.r.t addition C
• Multiplication of a scalar with the matrix D

The complement of set A relative to universal set U is the set

• 
  A
• 
  B
• 
  C
• A - U D

Cos 315°=

• 0.707 A
• 0.5 B
• 1 C
• 0 D