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Physics Fsc Part 1 Chapter 2 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | If A x B = 0 then it is concluded that. |
<p>A and B ar e to each other</p> <p>A and B are parallel to each other</p> <p>A and B are position vectors</p> <p> A and B are unti vectors</p> |
| 2 | The cross product of vector A with itself is equal to. |
<p>A</p> <p>1</p> <p>2 A</p> <p>Null Vector</p> |
| 3 | If A x B points along positive z-axis, then vector A and B must lie in. |
<p>y Z -plane</p> <p>X y -plane</p> <p>X Z -plane</p> <p>x 0 - Plane</p> |
| 4 | The scalar product of two vectors will be maximum if they are. |
<p>Parallel</p> <p>Perpedicular</p> <p>Anti Parallel</p> <p>All of these</p> |
| 5 | If A.B =0 when vector A and B are parallel or anti paralled, then either A or B is a |
<p>Equal </p> <p>Null Vector</p> <p>Perpendicular</p> <p>Not Zero</p> |
| 6 | The scalar prodcut of two vectors A and B is zero when |
<p>They are perpendiclar to each other</p> <p>They are equal vector</p> <p>They are in same direction </p> <p>They are in opposite direction</p> |
| 7 | Maximum number of rectangular components of a vector in 2- dimenstion may be |
<p>One</p> <p>Two</p> <p>Three</p> <p>Infinite</p> |
| 8 | If a force of 10 N makes an angle of 30o with x-axis its y-component is given by |
<p>8.66 N</p> <p>0 N</p> <p>0.776 N</p> <p>5 N</p> |
| 9 | The Fs of force F of magnitude 30 N making an angle of 60o with x -axis |
<p>7 N</p> <p>15 N</p> <p>10 N</p> <p>5 N</p> |
| 10 | Name the quantity which is a vector |
<p>Power</p> <p>Density</p> <p>Impulse</p> <p>Charge</p> |
| 11 | Whcih of the following is a scalar quantity. |
<p>Torque</p> <p>Forece</p> <p>Energy</p> <p>Acceleration</p> |
| 12 | Ascalar is a physicla quantity which is completely specified by. |
<p>Number</p> <p>Direction only</p> <p>Number with proper unit</p> <p>Number with direction </p> |
| 13 | Elastic collision involoves |
<p>Loss of energy</p> <p>Gain of energy</p> <p>No gain, no loss of energy</p> <p>No relation between energy and elastic collision </p> |
| 14 | As rocket moves upwrd during its journey, then its acceleration goes on. |
<p>Increasing</p> <p>Decreasing</p> <p>Remains same</p> <p>It moves with uniform velocity</p> |
| 15 | The rate of change of momentum is |
<p>Force</p> <p>Impulse</p> <p>Acceleration </p> <p>Power</p> |
| 16 | SI Unit of impulse in. |
<p>kg m s-2</p> <p>Ns</p> <p>N m</p> <p>N m2</p> |
| 17 | The acceleration at the top of a trajectory of projectile is. |
<p>g</p> <p>zero</p> <p>Maximum</p> <p>Minimum</p> |
