Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

11.

The heart of a man pumps 5 L of blood through  the arteries per minute at a pressure of 150 mm of mercury . If the density of mercury be 13.6 x 103 kg/ m3 and g = 10 m/s2, then the power of heart in watt is  

  • 1.70

  • 2.35

  • 3.0

  • 3.0

4225 Views

12.

On a frictionless surface, a block of mass M moving at speed v collides elastically with another block of same mass M which is initially at rest. After collision, the first block moves at an angle θ to its initial direction and has a speed v/3/ The second block's speed after the collision is 

  • 3/4 v

2538 Views

13.

An engine pumps water through a hosepipe. Water passes through the pipe and leaves it with a velocity of 2 ms-1. The mass per unit length of water in the pipe is 100 kgm-1. What is the power of the engine?

  • 400 W

  • 200 W

  • 100 W

  • 100 W

1282 Views

14.

Water falls from a height of 60 m at the rate of 15 kg /s to operate a turbine. The losses due to frictional 

  • 8.1 kW

  • 10.2 kW

  • 12.3 kW

  • 12.3 kW

1571 Views

Advertisement
15.

A tube of length L is filled completely with an incompressible liquid of mass M and closed at both the ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity ω. The force exerted by the liquid at the other end is

  • MLω squared over 2
  • fraction numerator ML squared straight omega over denominator 2 end fraction
  • MLω squared
  • MLω squared
1107 Views

16.

The diagrams below show regions of equipotentials



A positive charge is moved from A to B in each diagram.

  • Maximum work is required to move q in figure (c).

  • In all the four cases the work done is the same.

  • Minimum work is required to move q in figure (a).

  • Minimum work is required to move q in figure (a).

1379 Views

17.

Consider a drop of rain water having mass 1 g falling from a height of 1 km. It hits the ground with a speed of 50 m/s. Take g constant with a value 10 m/s2. The work done by the (i) gravitational force and the (ii) resistive force of air is

  • (i) – 10 J (ii) –8.25 J

  • (i) 1.25 J (ii) –8.25 J

  • (i) 100 J (ii) 8.75 J

  • (i) 100 J (ii) 8.75 J

4191 Views

18.

If force F=5i^+3j^+4k^ makes a displacement of s=6i^-5k^work done by the force is

  • 10units

  • 1225units

  • 5122units

  • 20units


Advertisement
19.

A particle moves from postionr1=3i^+2j^-6k^  to position  r2=14i^+13j^+9k^  under action of force F=4i^+j^+3k^ N.  The work done will be

 

  • 100J

  • 50J

  • 200J

  • 75J


20.

The work done in pulling up a block of wood weighing 2 kN for a length of 10 m on a smooth plane inclined at an angle of 15° with the horizontal is

  • 9.82 kJ

  • 89 kJ

  • 4.35 kJ

  • 5.17 kJ


Advertisement