Vectors and Its Types

Q.

Which of the given 2 vectors are same?

1. None of these

2. (A) & (C)

3. (C) & (B)

4. both option (A) & (B)

Q.

Which of the given 2 vectors are negative of each other?

1. (E) & (D)

2. both option a & b

3. None of these

4. (A) & (D)

Q.

Is a vector necessarily changed if it is rotated through an angle?

1. True

2. None of These

3. Can't Say

4. False

Q. Two vectors of the same physical quantity are unequal if

1. they have the same magnitude and the same direction
2. they have different magnitudes but the same direction
3. they have the same magnitude but different directions
4. they have different magnitudes and different directions.

Q.

Angular momentum is

1. A scalar

2. A polar vector

3. An axial vector

4. None of these

Q.

Which of the given vector is a negative vector?

1. Vector B

2. There is no such thing as Negative Vector

3. None of these

4. Vector A

Q. Two vectors of the same physical quantity are equal if

1. they have the same magnitude and the same direction.
2. they have different magnitudes but the same direction.
3. they have the same magnitude but different directions.
4. they have different magnitudes and different directions.

Q. Bubble burst the ones, which can be thought of as vectors.

1. Pressure
2. Velocity
3. Force
4. Temperature Change
5. Momentum
6. Acceleration
7. Mass
8. Displacement

Q. Find a value of $\alpha$ such that velocities $\overrightarrow{v_A}=3\hat{i}+6\hat{j}and\overrightarrow{v_B}=2\hat{i}+\alpha \hat{j}$ represent velocities of cars moving in the same direction.

1. $\alpha =2$
2. $\alpha =4$
3. $\alpha =3$
4. $\alpha =1$

Q. Find the angle between $\overrightarrow{A}$ and $\overrightarrow{B}$ in degrees.

1. 150
2. 180
3. 130
4. 30