Free MCQs & Online Quiz Practice for Exams

Q: Which of the following is an example of vector product of two vectors? (Entry test 2010)

A) Linear momentum

B) angular momentum

C) Force

D) Electric flux

Q: The angle subtended by a vector A = i − j with x-axis is (Entry test 2010)

A) 45°

B) 135°

C) 225°

D) 315°

Q: The minimum number of unequal forces whose vector sum can be zero are (Entry test 2010)

A) one

B) Two

C) Three

D) Four

Q: The magnitude of the resultant of two forces is 2F. If the magnitude of each force is F, then the angle between these forces is (Entry test 2010)

A) 0°

B) 90°

C) 120°

D) 180°

Q: Two forces of magnitude 20 N and 10 N act at a point then which one of the following cannot be their possible sum? (Entry test 2012)

A) 30 N

B) 10 N

C) 15 N

D) 35 N

Q: Which one of the following is not a vector quantity? (Entry test 2012)

A) electric field intensity

B) gravitational field intensity

C) magnetic induction

D) electromotive force

Q: Two equal, parallel and non-concurrent forces that produce only angular acceleration are (Entry test 2012)

A) couple

B) couple arm

C) collinear forces

D) torque

Q: The minimum number of forces that keep the body in equilibrium are (Entry test 2012)

A) two

B) three

C) four

D) five

Q: If two forces P and Q are such that |P + Q| = |P − Q|, then the angle between P and Q is (Entry test 2009/2012)

A) 0°

B) 30°

C) 90°

D) 180°

Q: Two concurrent forces have a maximum resultant of 45 N and minimum resultant of 5 N. What is the magnitude of each force? (Entry test 2009)

A) 0,45N

B) 5,9 N

C) 20,25 N

D) 20,45 N

Q: How are two vectors of the same magnitude oriented to get a resultant of the same magnitude? (Entry test 2009)

A) 90°

B) 60°

C) 45°

D) 120°

Q: If Ā = 2î + ĵ + 2k̂, then its magnitude is (Entry test 2010)

A) 9

B) 5

C) 3

D) 1

Q: The angle subtended by a vector Ā = î − ĵ, with x-axis is (Entry test 2010)

A) 45°

B) 135°

C) 225°

D) 315°

Q: ĵ · (k̂ × ĵ) is equal to (Entry test 2010)

A) -1

B) zero

C) 1

D) 2

Q: Three vectors of equal magnitude are acting on the three sides of an equilateral triangle. The magnitude of their resultant is (Entry test 2011)

A) zero

B) 3

C) √3

D) 1.73

Q: The point at which an applied force produces linear motion but no rotatory motion is (Entry test 2011)

A) mid point

B) centre of gravity

C) optical centre

D) Pole

Q: A projectile is launched at 45° to the horizontal with initial kinetic energy E. What will be the K.E of projectile when it reaches its highest point? (2014)

A) 0.50 E

B) 0.71 E

C) 0.87 E

D) E

Q: A body is released from the top of an inclined plane that makes an angle θ with the horizontal. The coefficient of friction is estimated best with. (2004)

A) sinθ

B) cosθ

C) tanθ

D) cotθ

Q: Which pair of the following physical quantities have the same dimensions? (2005)

A) Force,energy

B) work,power

C) momentum,impulse

D) torque,density

Q: A stone is thrown straight up and reaches a height H. Before falling back to the ground after T seconds, its average speed during T is (2005)

A) Zero

B) H/T

C) H/2T

D) HT