1)

The total momentum of the system of particle is equal to the product of the total mass of the system and the

Class 11 Physics

A)

Velocity of its centre of mass

B)

Acceleration

C)

Velocity

D)

None

2)

When the total external force acting on the system of particles is zero then the total

Class 11 Physics

A)

Both a and b

B)

Linear momentum of the system is constant

C)

Angular momentum of the system is constant

D)

None

3)

When the external force on the system is zero then ______ remains constant.

Class 11 Physics

A)

Both a and b

B)

Velocity of centre of mass

C)

Velocity of body

D)

None

4)

The magnitude of vector product of vectors A and B is given by

Class 11 Physics

A)

Both a and b

B)

|A×B| = AB Cosx

C)

|A×B | = AB sinx

D)

None

5)

For the vector product, C = A×B

Class 11 Physics

A)

Both a and b

B)

C is parallel to the plane containing A and B

C)

C is perpendicular to the plane containing A and B

D)

None

6)

The vector product is

Class 11 Physics

A)

Both a and b

B)

Not commutative

C)

Commutative

D)

None

7)

The vector product A× B =

Class 11 Physics

A)

Both a and b

B)

– (B × A)

C)

B×A

D)

None

8)

Scalar and vector product are distributive with respect

Class 11 Physics

A)

Vector subtraction

B)

Vector addition

C)

Vector multiplication

D)

None

9)

For unit vector i, j and k

Class 11 Physics

A)

Both a and b

B)

i × j = k

C)

i×i = j×j = k×k = 0

D)

None

10)

Velocity in terms of vector product is given by

Class 11 Physics

A)

V = RW

B)

V = w × r

C)

V = w•r

D)

None