New ! Physics MCQ Practise Tests

11th Standard Physics English Medium Free Online Test Creative One Mark Questions with Answer Key - Part Four

11th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Physics

Time : 00:10:00 Hrs
Total Marks : 10

    Answer all the questions

    10 x 1 = 10
  1. How many AU present in one light year?

    (a)

    6.30 x 104m

    (b)

    9.46 x 1015m

    (c)

    6.2 x 102m

    (d)

    9.4 x 1016m

  2. If \(\bar A\)and \(\bar B\) are two vectors, \(\bar A.\bar B=\bar A\times\bar B\) then resultant vector is:

    (a)

    A+B

    (b)

    A-B

    (c)

    \(\sqrt {A^2+B^2}\)

    (d)

    \(\sqrt {A^2+B^2+\sqrt{2}AB}\)

  3. A man throws balls with the same speed vertically upwards one after the other at an interval of 2 seconds. what should be the speed of the throw so that more than two bails are in the sky at any time ? (Given g=9.8m/s2)

    (a)

    more than 19.6 m/s

    (b)

    at least 9.8 m/s

    (c)

    any speed less than 19.6m/s

    (d)

    only with speed 19.6 m/s

  4. The position vector of a particle is \(\vec r=4t^2\hat i+2t\hat j+3\hat k\) . The speed of the particle at t = 5s is

    (a)

    42 ms-1

    (b)

    3 s

    (c)

    3 ms-1

    (d)

    40 ms-1

  5. Unit of momentum

    (a)

    kg ms-2

    (b)

    kg ms-1

    (c)

    M L T-2

    (d)

    M L T-1

  6. The law of conservation of energy always. holds good when:

    (a)

    a body moves down a rough plane

    (b)

    two electrically charged particles collide

    (c)

    two bodies collide

    (d)

    a body moves (or rolls) down a smooth plane

  7. For inelastic collision co-efficient of restitution is

    (a)

    0

    (b)

    1

    (c)

    0 < e < 1

    (d)

    \(\infty \)

  8. A wheel of moment of inertia 4 x 10-3 kgm2 is making 10 revolutions per second. The torque required to stop it in 5 seconds is

    (a)

    \(2\pi\times 10^{-3} Nm\)

    (b)

    \(8\pi \times 10^{-3} Nm\)

    (c)

    \(16\pi \times 10^{-3} Nm\)

    (d)

    \(8\times 10^{-3}Nm\)

  9. The velocity of the rolling object on inclined plane at the bottom of inclined plane is

    (a)

    \(\sqrt { \frac { 1+\frac { { k }^{ 2 } }{ { R }^{ 2 } } }{ gsin^{ 2 }\theta } } \).

    (b)

    \(\sqrt { \frac { 2gh }{ 1+\frac { { k }^{ 2 } }{ { R }^{ 2 } } } } \).

    (c)

    \(\sqrt { \frac { 2h\left( 1+\frac { { k }^{ 2 } }{ { R }^{ 2 } } \right) }{ gsin^{ 2 }\theta } } \).

    (d)

    \(\sqrt { \frac { 2h\left( 1+\frac { { k }^{ 2 } }{ { R }^{ 2 } } \right) }{ gsin^{ 2 }\theta } } \).

  10. While negotiating a circular level road a cyclist has to bend by an angle θ from vertical to stay in an equilibrium is

    (a)

    \(tan \theta=\frac{rg}{r^{2}}\)

    (b)

    \(\theta=tan^{-1} (\frac{v^{2}}{rg})\)

    (c)

    \(\theta = sin^{-1}(\frac{rg}{r^{2}})\)

    (d)

    zero

*****************************************

TN 11th Standard Physics free Online practice tests

Reviews & Comments about 11th Standard Physics English Medium Free Online Test Creative One Mark Questions with Answer Key - Part Four

Write your Comment