**1001. A vector is a tensor of rank:**

**A. 1 ***

B. 2

C. 3

D. 4

**1002. If { A,B } = 0,then two operators A and B are said to be :**

A. Anticommute

B. Do not commute

**C. Commute ***

D. None of these

**1003. al/at + dwj = 0 is called :**

A. Laplace’s equation

B. Equation of continuity

**C. Tensor equation ***

D. Equation of polar coordinates

**1004. First Law thermodynamics is a special form of :**

**A. Law of conservation of energy ***

B. Law of conservation of momentum

C. Law of Inertia

D. None of these

**1005. moment of inertia is a tensor of rank :**

A. 3rd

**B. 2nd ***

C. 0th

D. 4th

**1006. The range of projectile will be same when the angel of projection are :**

A. 20 degree & 80 degree

**B. 30 degree & 60 degree ***

C. 25 degree & 50 degree

D. 20 degree & 45 degree

**1007. The work done by compound pendulum in one complete oscillation is :**

**A. Zero ***

B. Equal to K.E of pendulum

C. Equal to P.E of pendulum

D. Equal to total energy of pendulum

**1008. A man inside an artificial satellite feels weightlessness because the force of attraction due to the earth is :**

A. Zero at the place

**B. Equal to centripetal force ***

C. Balance the force of attraction due to the moon

D. Non-efficient due to particular design of the satellite

**1009. The component of a vector P along y-axis is IPI/2, the angle made by the vector with horizontal is :**

A. 60 Degree

B. 45 Degree

**C. 30 Degree ***

D. 90 Degree

**1010. It is possible to distinguish between transverse and longitudinal waves by studying the property of :**

**A. Polarization ***

B. Interference

C. Diffraction

D. Any of them