JEE Physics Motion In A Plane MCQs Set B

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MCQ for Full Syllabus Physics Motion In A Plane

Full Syllabus Physics students should refer to the following multiple-choice questions with answers for Motion In A Plane in Full Syllabus.

Motion In A Plane MCQ Questions Full Syllabus Physics with Answers

 

 

Question:

  • a)

  • b)

  • c)

  • d) None of this

Answer:

 

Question:

  • a) 0
  • b) A2
  • c)

  • d)

Answer: 0

 

Question:

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question:

  • a)

  • b)

  • c)

  • d) None of this

Answer:

 

Question:

  • a)

  • b)

  • c)

  • d) All of these

Answer:

 

 

Question: If R and H are the horizontal range and maximum height attained by a projectile, than its speed of projection is

  • a)

  • b)

  • c)

  • d) None of this

Answer:

 

 

Question:  A particle projected from ground moves at angle 45º with horizontal one second after projection and speed is minimum two seconds after the projection. The angle of projection of particle is [Neglect the effect of air resistance]

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question:

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question:

  • a)

  • b)

  • c) 0
  • d) All of these

Answer:

 

Question:

  • a)

  • b)

  • c)

  • d) None of this

Answer:

 

Question:

  • a) 98
  • b) 73
  • c) 140
  • d) 180

Answer: 98

 

Question:

  • a) 10 m/s2
  • b) 5 m/s2
  • c) 12 m/s2
  • d) 0

Answer: 10 m/s2

 

Question: A particle is moving on a circular path with constant speed v. It moves between two points A and B, which subtends an angle 60º at the centre of circle. The magnitude of change in its velocity and change in magnitude of its velocity during motion from A to B are respectively

  • a) v, 0
  • b) 0, v
  • c) 2v, v
  • d) 0,0

Answer:  v, 0

 

Question: A particle is moving with constant speed v in xy plane as shown in figure. The magnitude of its angular velocity about point O is

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question:

  • a)  Either (1) or (2)
  • b)

  • c)

  • d) None of this

Answer: Either (1) or (2)

 

Question: A particle is moving eastwards with a speed of 6 m/s. After 6 s, the particle is found to be moving with same speed in a direction 60° north of east. The magnitude of average acceleration in this interval of time is

  • a)

  • b)

  • c)

  • d) 0

Answer:

 

Question: What is the path followed by a moving body, on which a constant force acts in a direction other than initial velocity (i.e. excluding parallel and antiparallel direction)?

  • a) Parabolic
  • b) Straight line
  • c) Circular
  • d) Elliptical

Answer: Parabolic

 

Question:

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question:

  • a) 5a
  • b) 8a
  • c) 2a
  • d) 1a

Answer: 5a

 

Question:

  • a) A is true but B is false
  • b) A is false but B is true
  • c) Both A and B are false
  • d) Both A and B are true 

Answer: A is true but B is false

 

More Questions..................................

 

Question: Which of the following quantities remains constant during uniform circular motion?

  • a) Speed
  • b) Velocity
  • c) Centripetal acceleration
  • d) Momentum

Answer: Speed

 

Question:

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question:

  • a) 4
  • b) 2
  • c) 1
  • d) 0.5

Answer: 4

 

Question: A ball is projected from a point O as shown in figure. It will strike the ground after (g = 10 m/s2)

  • a) 4 s
  • b) 3 s
  • c) 2 s
  • d) 5 s

Answer: 4 s

 

Question:

  • a) 40 m/s
  • b) 5 m/s
  • c) 20 m/s
  • d) None of this

Answer: 40 m/s

 

Question: Which one of the following statements is not true about the motion of a projectile?

  • a) The horizontal range of a projectile is proportional to the square root of the speed with which it is projected
  • b) The time of flight of a projectile is proportional to the speed with which it is projected at a given angle of projection
  • c) For a given speed of projection, the angle of projection for maximum range is 45°
  • d) At maximum height, the acceleration due to gravity is perpendicular to the velocity of the projectile

Answer: The horizontal range of a projectile is proportional to the square root of the speed with which it is projected

 

Question: Out of the two cars A and B, car A is moving towards east with a velocity of 10 m/s whereas B is moving towards north with a velocity 20 m/s, then velocity of A w.r.t. B is (nearly)

  • a) 22 m/s
  • b) 42 m/s
  • c) 10 m/s
  • d) 30 m/s

Answer:  22 m/s

 

Question:

  • a)

  • b)

  • c)

  • d) None of this

Answer:

 

Question:

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question:

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question: A boat is sent across a river with a velocity of 8 km/h. If the resultant velocity of the boat is 10 km/h, then velocity of the river is

  • a) 6 km/h
  • b) 12.8 km/h
  • c) 10 km/h
  • d) 8 km/h

Answer: 6 km/h

 

Question:  The horizontal range and the maximum height of a projectile are equal. The angle of projection of the projectile is

  • a)

  • b)

  • c)

  • d)

Answer:

 

 

Question:

  • a)

  • b)

  • c) 9 units
  • d) 5 units

Answer:

 

 

Question:

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question: A body is moving with velocity 30 m/s towards east. After 10 seconds its velocity becomes 40 m/s towards north. The average acceleration of the body is

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question: A missile is fired for maximum range with an initial velocity of 20 m/s. If g = 10 m/s2, the range of the missile is

  • a) 40 m
  • b) 20 m
  • c) 50 m
  • d) 60 m

Answer: 40 m

 

Question: A projectile is fired at an angle of 45° with the horizontal. Elevation angle of the projectile at its highest point as seen from the point of projection is

  • a)

  • b)

  • c) 60°
  • d) 45°

Answer:

 

Question:

  • a)

  • b)

  • c)

  • d) None of these

Answer:

 

Question: An object is being thrown at a speed of 20 m/s in a direction 45° above the horizontal. The time taken by the object to return to the same level is

  • a)

  • b)

  • c) 20g
  • d) 20/g

Answer:

 

Question:

  • a) 90°
  • b) 0°
  • c) 180°
  • d) None of these

Answer:  90°

 

Question: A body is whirled in a horizontal circle of radius 20 cm. It has an angular velocity of 10 rad/s. What is its linear velocity at any point on circular path?

  • a) 2 m/s
  • b) 10 m/s
  • c) 20 m/s
  • d) None of this

Answer:  2 m/s

 

Question:

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question: Identify the vector quantity among the following.

  • a) Angular momentum
  • b) Distance
  • c) Heat
  • d) Energy

Answer: Angular momentum

 

Question:

  • a) 5.8 m/s
  • b) 17.3 m/s
  • c) 9.8 m/s
  • d) 10 m/s

Answer: 5.8 m/s

 

Question:  The speed of a boat is 5 km/h in still water. It crosses a river of width 1.0 km along the shortest possible path in 15 minute. The velocity of the river water (in km/h) is

  • a) 3
  • b) 1
  • c) 4
  • d) 5

Answer: 3

 

Question:

  • a) 3
  • b) 1
  • c) 5
  • d) 4

Answer: 3

 

Question: A person aiming to reach exactly opposite point on the bank of a stream is swimming with a speed of 0.5 m/s at an angle of 120° with the direction of flow of water. The speed of water in the stream is

  • a) 0.25 m/s
  • b) 0.5 m/s
  • c) 1.0 m/s
  • d) 0.433 m/s

Answer:  0.25 m/s

 

Question: Two projectiles of same mass and with same velocity are thrown at an angle 60° and 30° with the horizontal, then which will remain same

  • a) Range of projectile
  • b) Time of flight
  • c) Maximum height acquired
  • d) All of these

Answer: Range of projectile

 

Question:

  • a) 40 m/s2
  • b)

  • c)

  • d) None of this

Answer: 40 m/s2

 

Question: The vector sum of two forces is perpendicular to their vector differences. In that case, the forces

  • a) Are equal to each other in magnitude
  • b) Cannot be predicted
  • c) Are equal to each other
  • d) Are not equal to each other in magnitude

Answer: Are equal to each other in magnitude

 

Question: A stone tied to the end of a string of 1 m long is whirled in a horizontal circle with a constant speed. If the stone makes 22 revolutions in 44 seconds, what is the magnitude and direction of acceleration of the stone?

  • a)

  • b)

  • c)

  • d) None of this

Answer:

 

Question:

  • a)

  • b)

  • c)

  • d) None of this

Answer:

 

Question:

  • a) 1 : 1
  • b) 2 : 1
  • c) 2 : 3
  • d) 1 : 2

Answer: 1 : 1

 

Question: A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 seconds for every circular lap. The average velocity and average speed for each circular lap respectively is

  • a) 0, 10 m/s
  • b) 10 m/s, 10 m/s
  • c) 0, 0
  • d) 10 m/s, 0

Answer: 0, 10 m/s

 

Question:

  • a) 60°
  • b) 0°
  • c) 30°
  • d) 45°

Answer: 60°

 

Question: A wheel has angular acceleration of 3.0 rad/s2 and an initial angular speed of 2.00 rad/s. In a time of 2 s it has rotated through an angle (in radian) of

  • a) 10
  • b) 12
  • c) 4
  • d) 6

Answer: 10

 

Question:  A particle of mass m is projected with velocity V making an angle of 45o with the horizontal. When the particle lands on the level ground the magnitude of the change in its momentum will be

  • a)

  • b)

  • c)

    2 mV

  • d)

    3 mV

Answer:

 

Question:

  • a)

  • b)

  • c)

  • d) None of this

Answer:

 

Question:

  • a)

  • b) 8.5 units
  • c) 7 units
  • d) 10 units

Answer: 

 

Question: The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is

  • a) 60º
  • b) 15º
  • c) 30º
  • d) 45º

Answer:  60º

 

MCQs for Motion In A Plane Physics Full Syllabus

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