NEET / AIIMS · Practice Sheet 28

1. 1.

   Physics

   Find the force required to accelerate a 38 kg mass at 7 m/s².

   Formula:Newton's Second Law (F = ma)

   $F = ma$

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2. 2.

   Physics

   Find the momentum of a 37 kg body moving at 14 m/s.

   Formula:Linear Momentum

   $p = mv$

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3. 3.

   Chemistry

   Find the molarity of a solution containing 2.5 mol of solute in 2.5 L of solution.

   Formula:Molarity

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

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4. 4.

   Biology

   In a population at Hardy–Weinberg equilibrium, the recessive allele frequency q = 0.3. Find the dominant allele frequency p and the percentage of heterozygous carriers.

   Formula:Hardy–Weinberg Equilibrium

   $p + q = 1,\;\; 2pq = \text{carriers}$

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5. 5.

   Biology

   In a monohybrid cross (Aa × Aa) producing 32 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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6. 6.

   Physics

   Find the force required to accelerate a 37 kg mass at 15 m/s².

   Formula:Newton's Second Law (F = ma)

   $F = ma$

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7. 7.

   Biology

   Under a microscope, an object of actual size 0.6 mm appears 22.8 mm. Find the magnification.

   Formula:Microscope Magnification

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

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8. 8.

   Physics

   Find the kinetic energy of a 1 kg object moving at 26 m/s.

   Formula:Kinetic Energy

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

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9. 9.

   Chemistry

   A solution is made by dissolving 41 g of solute in 149 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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10. 10.

    Chemistry

    Find the molarity of a solution containing 2.5 mol of solute in 2 L of solution.

    Formula:Molarity

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

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11. 11.

    Chemistry

    How many moles are present in 88 g of carbon dioxide (CO₂) (molar mass = 44 g/mol)?

    Formula:Number of Moles

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

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12. 12.

    Biology

    Calculate the BMI of a person weighing 73 kg with height 1.62 m.

    Formula:Body Mass Index

    $BMI = \dfrac{m}{h^{2}}$

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13. 13.

    Physics

    Find the electrical power when 27 V drives a current of 14 A.

    Formula:Electrical Power

    $P = VI$

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14. 14.

    Physics

    Find the momentum of a 4 kg body moving at 14 m/s.

    Formula:Linear Momentum

    $p = mv$

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15. 15.

    Biology

    Under a microscope, an object of actual size 3.9 mm appears 234 mm. Find the magnification.

    Formula:Microscope Magnification

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

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16. 16.

    Biology

    In a monohybrid cross (Aa × Aa) producing 180 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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17. 17.

    Chemistry

    How many moles are present in 18 g of water (H₂O) (molar mass = 18 g/mol)?

    Formula:Number of Moles

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

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18. 18.

    Biology

    Under a microscope, an object of actual size 1.8 mm appears 100.8 mm. Find the magnification.

    Formula:Microscope Magnification

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

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19. 19.

    Physics

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

    Formula:Kinetic Energy

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

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20. 20.

    Physics

    Find the electrical power when 11 V drives a current of 17 A.

    Formula:Electrical Power

    $P = VI$

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