If you are looking first Year Chapter Two Physics VECTORS AND EQUILIBRIUM Chapter Wise MCQs question answers, You are here on right website all of these Multiple Choice Question answers are helpful for learning exams MCQs Questions with solutions. Learn these important Key points for upcoming board exams and tests preparations.
Physics Vectors and Equilibrium Notes |
On this website you will learn first Year Physics Unit Two VECTORS AND EQUILIBRIUM MCQs with solved Answers. Mostly past papers important MCQs are helpful for getting better marks. You will easily learn this chapter by learning these solved MCQs of VECTORS AND EQUILIBRIUM.
Important Key Points You Will Learn in Chapter Two:
- Vectors
- Rectangular Components of a vector
- Position Vector
- Vector Addition by Rectangular Components
- Scalar Product and Vector Product
- Torque
- Conditions of Equilibrium
11th Class Chapter No.2 Physics MCQs Quiz Test
Q.1: Rectangular coordinate system is also called?
- Polar coordinate system
- Cartesian coordinate system
- Cylindrical-coordinate system
- Spherical coordinate system
B
Q.2: The direction of a vector in space is specified by?
- One angle
- Two angle
- Three angle
- No angle
C
Q.3: Addition of vector obey?
- Commutative law
- Distributive law
- Associative law
- All of these
D
Q.4: Which of the following statement is correct about force and velocity?
- Force and velocity both are scalars
- Force and velocity both are vectors
- Force is scalar and velocity is vector
- Force is vector and velocity is scalar
B
Q.5: Unit vector n is along?
- x-axis
- Normal on a surface
- y-axis
- z-axis
B
Q.6: Cosθ i + Sinθ j is a?
- Vector
- Position vector
- A vector in the direction at angle θ with x-axis
- The unit vector in the direction at angle θ with x-axis
D
Q.7: Maximum number of rectangular components are?
- One
- Two
- Three
- Infinite
C
Q.8: The maximum number of components of a vector maybe?
- One
- Two
- Three
- Infinite
D
Q.9: Which one is not correct for a vector A = √2i +√2j?
- has direction θ = 45° with x-axis
- has magnitude
- has magnitude 2 and direction θ = 45° with the y-axis
- has magnitude -2
D
Q.10: The result of two forces of equal magnitudes is also equal to the magnitude of the forces. The angle between the two forces is?
- 30°
- 60°
- 90°
- 120°
D
Q.11: What is the angle that the given vector makes with y-axis and A = 2i + √.12 j?
- 30°
- 60°
- 90°
- 120°
B
Q.12: In which quadrant the two rectangular components of a vector have same sign?
- 1st
- 2nd
- Both 1st and 3rd
- 4th
C
Q.13: Two vectors A and B are making angle θ with each other. The scalar projection of vector B on vector A is written as?
- A.B/A
- A.B/B –
- A.cosθ
- Both a and b are correct
A
Q.14: Two vectors are A = 3i + 2j – k and B = 3i – 2j + k then?
- B is antiparallel to A
- B is inclined at 60° with A
- B has a negative magnitude
- B is perpendicular to A
A
Q.15: Arc of a triangle formed by vectors i and (i – j) is?
- 1
- 0
- ½
- Triangle cannot be formed by these vectors
C
Q.16: Which of the following is a scalar quantity?
- The braking force needed to stop the car
- The heat needed to boil some water
- The effort needed to hammer a nail into wood
- The thrust needed to lift a rocket off the ground
B
Q.17: Which is not a correct relation?
- A x B = A x B
- |A x B| = – |B x A|
- A x B = ABSinθn
- B x A = ABSinθ (-n)
B
Q.18: Out of the following set of forces, the resultant of which triplet cannot be zero?
- 10, 10, 10
- 10, 10, 20
- 10, 20, 40
- 10, 20, 20
C
Q.19: If east, west, north, south, up and down are representing the direction of unit vectors, then east x south has direction along?
- West
- North
- Down
- Up
C
Q.20: Null Vector is a vector which has?
- Zero magnitude
- No specified direction
- Both a and b are correct
- Both a and b are not correct
C
Q.21: Which one is a unit vector?
- √3i + √3j + √3k
- 1/√3 i + 1/√3j + 1/√3 k
- √3/3 i + √3/3j + √3/3 k
- Both b and c are correct
C
Q.22: Angle between A = i and B = i – j is?
- 0°
- 45°
- 90°
- 270°
B
Q.23: The magnitude of the cross product of two vectors is equal to the dot product between them. The angle between the two vectors?
- 30°
- 45°
- 60°
- 180°
B
Q.24: An airplane flies 400m due north and then flies 300m south and then flies 1200m. The net displacement is?
- 1500m
- 1200m
- 900m
- 700m
B
Q.25: A vector contains more information than a scalar. What is this extra information?
- Acceleration
- Direction
- Size
- Resultant
B
Q.26: Five equal forces of 10N each are applied at one point and all are lying in one place. If the angles between them are equal, the resultant force will be?
- 10N
- 20N
- 10 √2 N
- Zero
D
Q.27: The torque acting on a body determines?
- Acceleration
- Linear acceleration
- Angular acceleration
- The direction of motion of the body
C
Q.28: The torque acting on a body determines?
- [MLT-1]
- [ML2T-1]
- [ML2T-2]
- [ML2T]
C
Q.29: A body will be in complete equilibrium when it is satisfying?
- 1st condition of equilibrium
- 2nd condition of equilibrium
- Both 1st and 2nd condition of equilibrium
- Impossible
C
Q.30: A body in equilibrium is?
- At rest
- In motion
- At rest or in uniform motion
- All are correct
C
Q.31: Three coplanar forces acting on a body keep it in equilibrium. They should therefore be?
- Concurrent
- Non-concurrent
- Parallel
- Non-parallel
A
Q.32: Which of the following pairs does not have identical dimensions?
- Torque and energy
- Momentum and impulse
- Energy and work
- Mass and moment of inertia
D
Q.33: A central force is that which?
- Can produce torque
- Can’t produce torque
- Some time can produce torque some time can’t
- Has no relation with torque
B
Q.34: It is easier to turn a steering wheel with both hands than with a single hand because?
- Acceleration force increase on the wheel
- Two forces act on the wheel
- Two hands provide a firm grip
- The couple acts on the wheel
D
Q.35: A force of 10N is acting along the y-axis. Its component along the x-axis is?
- Zero
- 10N
- 100N
- 5N
A
Q.36: The unit vector in the direction of vector A = 2i – 2j + k is?
- 2i – 2j + k/2
- 2i – 2j + k/9
- 2i – 2j + k/3
- 2i – 2j + k/5
C
Q.37: The magnitude of i.jxk is?
- 0
- 1
- -1
- i
B
Q.38: In which quadrant only, the value of ‘tan’ will be positive?
- First
- Second
- Third
- Both 1st and 3rd
D
Q.39: The cross product of two vectors is zero when?
- They are parallel vectors
- They are anti-parallel vectors
- They are perpendicular vectors
- Both a and b are correct
D