NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

The number ways in which 5 distinct toys can be distributed among 3 children is

• 3⁵ A
• 5³ B
• C₃⁵ C
• P₃⁵ D

• 
  A
• 
  B
• 
  C
• None of these D

Two matrices A and B are conformable

for multiplication (AB) if and only if

• Both A,B have the same number of columns
  
  A
• Both A and B do not have the same order
  
  B
• Number of col A is same as number of rows of B
  
  C
• Number of rows of A is same as number of col of B
  
  D

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• -2-i D

The graph of a quadratic function is

• Circle A
• Ellipse B
• Parabola C
• Hexagon D

• A + B A
• C²/AB B
• A²/BC C
• B²/AC D

The associative angle of 280°is

• 100° A
• 10° B
• 80°
  
  C
• -80°
  
  D

If a cone is cut by a plane perpendicular to the axis of the cone, then the section is a

• Parabola A
• Circle B
• Hyperbola C
• Ellipse D

If A and B are matrices of same order than (,A + B)(A + B) =

• A²+ B² A
• A²+ B²+ 2AB B
• A + B C
• A²+ B²+ AB + BA 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

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• None D

• 
  A
• 
  B
• 
  C
• 
  D

3/2 is

• An irrational number A
• Whole number B
• A positive integer C
• A rational number D