NEET / AIIMS · Practice Sheet 31

1. 1.

   Physics

   A force of 925 N acts on an area of 7 m². Find the pressure.

   Formula:Pressure

   $P = \dfrac{F}{A}$

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2. 2.

   Biology

   In a monohybrid cross (Aa × Aa) producing 72 F₂ offspring, how many are expected to show the dominant and the recessive phenotype (3:1 ratio)?

   Formula:Monohybrid Cross (3:1)

   $\text{Dominant}:\text{Recessive} = 3:1$

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3. 3.

   Physics

   Find the momentum of a 50 kg body moving at 35 m/s.

   Formula:Linear Momentum

   $p = mv$

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4. 4.

   Physics

   Find the electrical power when 20 V drives a current of 11 A.

   Formula:Electrical Power

   $P = VI$

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5. 5.

   Physics

   An object starts at 9 m/s and accelerates at 3 m/s² for 3 s. Find its final velocity.

   Formula:Equation of Motion (v = u + at)

   $v = u + at$

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6. 6.

   Physics

   A constant force of 198 N moves an object 19 m in the direction of the force. Calculate the work done.

   Formula:Work Done

   $W = F\,d$

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7. 7.

   Physics

   Find the momentum of a 49 kg body moving at 36 m/s.

   Formula:Linear Momentum

   $p = mv$

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8. 8.

   Physics

   A force of 371 N acts on an area of 21 m². Find the pressure.

   Formula:Pressure

   $P = \dfrac{F}{A}$

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9. 9.

   Physics

   Find the kinetic energy of a 12 kg object moving at 4 m/s.

   Formula:Kinetic Energy

   $KE = \tfrac{1}{2}mv^{2}$

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10. 10.

    Physics

    Find the density of an object with mass 74 g and volume 20 cm³.

    Formula:Density

    $\rho = \dfrac{m}{V}$

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11. 11.

    Physics

    If 2,825 J of work is done in 22 s, find the power.

    Formula:Power

    $P = \dfrac{W}{t}$

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12. 12.

    Chemistry

    How many moles are present in 128 g of oxygen gas (O₂) (molar mass = 32 g/mol)?

    Formula:Number of Moles

    $n = \dfrac{m}{M}$

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13. 13.

    Chemistry

    100 mL of a 10 M solution is diluted to 210 mL. Find the new concentration.

    Formula:Dilution

    $M_1V_1 = M_2V_2$

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14. 14.

    Physics

    If 2,506 J of work is done in 30 s, find the power.

    Formula:Power

    $P = \dfrac{W}{t}$

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15. 15.

    Physics

    A force of 715 N acts on an area of 4 m². Find the pressure.

    Formula:Pressure

    $P = \dfrac{F}{A}$

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16. 16.

    Physics

    A body moving at 9 m/s accelerates at 7 m/s² for 8 s. Find the distance travelled.

    Formula:Equation of Motion (s = ut + ½at²)

    $s = ut + \tfrac{1}{2}at^{2}$

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17. 17.

    Physics

    A force of 536 N acts on an area of 28 m². Find the pressure.

    Formula:Pressure

    $P = \dfrac{F}{A}$

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18. 18.

    Biology

    Under a microscope, an object of actual size 2.8 mm appears 128.8 mm. Find the magnification.

    Formula:Microscope Magnification

    $M = \dfrac{\text{image size}}{\text{actual size}}$

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19. 19.

    Chemistry

    A solution is made by dissolving 46 g of solute in 163 g of solvent. Find the mass percentage of the solute.

    Formula:Mass Percentage

    $\%\,\text{mass} = \dfrac{\text{solute}}{\text{solution}}\times 100$

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20. 20.

    Physics

    A body moving at 9 m/s accelerates at 1 m/s² for 7 s. Find the distance travelled.

    Formula:Equation of Motion (s = ut + ½at²)

    $s = ut + \tfrac{1}{2}at^{2}$

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