NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

• 
  A
• 
  B
• 
  C
• 
  D

• 1 A
• 2 B
• 3 C
• 4 D

Ifα andβ be irrational roots of a quadratic equation, then

• 
  A
• 
  B
• 
  C
• 
  D

Two dice are rolled. The number of possible outcome in which at least one die shows 2 is?

• 5 A
• 12 B
• 11 C
• 7 D

What is a proper rational fraction?

• 
  A
• 
  B
• 
  C
• All are proper rational fractions D

• 
  A
• 
  B
• 
  C
• 
  D

If any two rows (or any two columns) of a square matrix are inter changed, the determinant of the resultant matrix is

• Same as the original determinant A
• Additive inverse of the original determinant
  B
• Both A and B C
• Adj of the original matrix D

• A polynomial A
• An inequality B
• An identity C
• A linear function D

• 
  A
• 
  B
• 
  C
• 
  D

• 1/2 A
• 3/5 B
• 4/5 C
• 1 D

If A and B are matrices such that AB=BA=I then

• A and B are multiplicative inverse of each other
  A
• A and B are additive inverses of each other
  B
• . A and B are singular matrices C
• A and B are equal D

Unit vector in the positive direction of x-axis is

• 
  A
• 
  B
• 
  C
• All D

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

The nth term in G.P 3,-6,12,....................... is

• 3(-2)^n-1 A
• 2(-2)ⁿ⁺¹ B
• 3(-2)ⁿ C
• 4(-2)^n-1 D

The conic is a parabola if

• e < 1 A
• e > 1 B
• e = 1 C
• e = 0 D