BISE Multan · Class 11 · Physics · 2026 · First Annual · Group 2 · Old course

Q.No.1

1. 1

   $102.4$ can be written in scientific notation as:

   • (A)

     $1.024\times {10}^3$

   • (B)

     $1.024\times {10}^{-1}$

   • (C)

     $1.024\times {10}^{-3}$

   • (D)

     $1.024\times {10}^2$

2. 2

   The sides of a rectangle are $6.01\mathrm{m}$ and $12\mathrm{m}$. Taking the significant figures into account, the area of rectangle is:

   • (A)

     $72.0{\mathrm{m}}^2$

   • (B)

     $72.01{\mathrm{m}}^2$

   • (C)

     $72{\mathrm{m}}^2$

   • (D)

     $72.1{\mathrm{m}}^2$

3. 3

   Work done by the force $3\widehat{i}+2\widehat{j}$ for the displacement $5\widehat{j}$ will be:

   • (A)

     $10$

   • (B)

     $15$

   • (C)

     $25$

   • (D)

     Zero

4. 4

   A vector $\vec{F}$ makes an angle $\theta$ with $y$-axis then its $y$-component is:

   • (A)

     $F\sin \theta$

   • (B)

     $F\cos \theta$

   • (C)

     $F$

   • (D)

     $F\tan \theta$

5. 5

   The range of projectile is minimum at the angle of projection of:

   • (A)

     ${30}^{\circ }$

   • (B)

     ${60}^{\circ }$

   • (C)

     ${45}^{\circ }$

   • (D)

     $0^{\circ }$

6. 6

   A particle is thrown at an angle of ${30}^{\circ }$ has range $10\mathrm{m}$. An other is projected at ${60}^{\circ }$ its range will be:

   • (A)

     $5\mathrm{m}$

   • (B)

     $20\mathrm{m}$

   • (C)

     $10\mathrm{m}$

   • (D)

     $8\mathrm{m}$

7. 7

   Escape velocity of a body depends upon:

   • (A)

     Body radius

   • (B)

     Mass of planet

   • (C)

     Body mass

   • (D)

     Body size

8. 8

   If the value of angular velocity is doubled keeping radius same. The centripetal force of same body will become:

   • (A)

     $4$ times

   • (B)

     $2$ times

   • (C)

     $5$ times

   • (D)

     Half

9. 9

   The height of close orbiting satellite is not greater than:

   • (A)

     $200\mathrm{k}\mathrm{m}$

   • (B)

     $400\mathrm{k}\mathrm{m}$

   • (C)

     $900\mathrm{k}\mathrm{m}$

   • (D)

     $42000\mathrm{k}\mathrm{m}$

10. 10

    The density of water at $4^{\circ }\mathrm{C}$ is:

    • (A)

      $1\mathrm{k}\mathrm{g}\mathrm{/}{\mathrm{m}}^3$

    • (B)

      $4.00\mathrm{g}\mathrm{/}\mathrm{c}{\mathrm{m}}^3$

    • (C)

      $1.00\mathrm{g}\mathrm{/}\mathrm{c}{\mathrm{m}}^3$

    • (D)

      $1.00\mathrm{g}\mathrm{/}{\mathrm{m}}^3$

11. 11

    In mass spring oscillation on the rough surface, total energy is:

    • (A)

      Decreasing

    • (B)

      Increasing

    • (C)

      Same

    • (D)

      Zero

12. 12

    If two waves of equal amplitude and frequency travelling in opposite directions overlapping, the resultant wave is a:

    • (A)

      Shock waves

    • (B)

      Travelling wave

    • (C)

      Longitudinal wave

    • (D)

      Standing wave

13. 13

    Two sounding bodies produce $8$ and $10$ waves in $0.25$ second in same direction, the beats per second will be:

    • (A)

      $2$

    • (B)

      $4$

    • (C)

      $8$

    • (D)

      $6$

14. 14

    Fringe spacing observed in Young's double slits experiment is increased by:

    • (A)

      Decreasing wavelength

    • (B)

      Decreasing slits separation

    • (C)

      Decreasing distance of screen

    • (D)

      Sharp light

15. 15

    The length of telescope in normal adjustment of telescope is:

    • (A)

      $f_o-2f_e$

    • (B)

      $f_o+2f_e$

    • (C)

      $f_o-f_e$

    • (D)

      $f_o+f_e$

16. 16

    The entropy of the universe always:

    • (A)

      Increases

    • (B)

      Decreases

    • (C)

      Remains same

    • (D)

      First increases then decreases

17. 17

    Number of steps in Carnot cycle are:

    • (A)

      Eight

    • (B)

      Six

    • (C)

      Four

    • (D)

      Three