## Fundamentals of vector-MCQ-Basic

Physics is an important subject in preparation for various Competitive exams.To keep a track of your preparation we have designed a small quiz of 10 Basic Level Questions on fundamentals of vector. You have 10 minutes to solve the quiz, click the start timer button in order to start the timer and then click on submit button at the end to submit the quiz and view your scores and correct answers.

Q1. How many minimum number of coplanar vectors having different magnitudes can be added to give zero resultant

•  2
•  3
•  4
•  5

3

Q2. A hall has the dimensions 10m x 12m x 14m. A fly starting at one corner ends up at a diametrically opposite corner. What is the magnitude of its displacement

•  17 m
•  26 m
•  36 m
•  21 m

21 m

Q3. Any vector in an arbitrary direction can always be replaced by two (or three)

•  Parallel vectors which have the original vector as their resultant
•  Mutually perpendicular vectors which have the original vector as their resultant
•  Arbitrary vectors which have the original vector as their resultant
•  It is not possible to resolve a vector

Arbitrary vectors which have the original vector as their resultant

Q4. Angular momentum is

•  A scalar
•  A polar vector
•  An axial vector
•  None of these

An axial vector

Q5. A particle is simultaneously acted by two forces equal to 4 N and 3 N. The net force on the particle is

•  7 N
•  5 N
•  1 N
•  Between 1 N and 7 N

Between 1 N and 7 N

Q6. If the resultant of the two forces has a magnitude smaller than the magnitude of larger force, the two forces must be

•  Different both in magnitude and direction
•  Mutually perpendicular to one another
•  Possess extremely small magnitude
•  Point in opposite directions

Point in opposite directions

Q7. Following sets of three forces act on a body. Whose resultant cannot be zero

•  10, 10, 10
•  10, 10, 20
•  10, 20, 20
•  10, 20, 40

10, 20, 40

Q8. When three forces of 50 N, 30 N and 15 N act on a body, then the body is

•  At rest
•  Moving with a uniform velocity
•  In equilibrium
•  Moving with an acceleration

Moving with an acceleration

Q9. The sum of two forces acting at a point is 16 N. If the resultant force is 8 N and its direction is perpendicular to minimum force then the forces are

•  6 N and 10 N
•  8 N and 8 N
•  4 N and 12 N
•  2 N and 14 N

6 N and 10 N

Q10. A plane is revolving around the earth with a speed of 100 km/hr at a constant height from the surface of earth. The change in the velocity as it travels half circle is

•  200 km/hr
•  150 km/hr
•  100 km/hr
•  0

200 km/hr

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