NEET / AIIMS · Practice Sheet 27

1. 1.

   Biology

   Under a microscope, an object of actual size 0.8 mm appears 42.4 mm. Find the magnification.

   Formula:Microscope Magnification

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

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2. 2.

   Physics

   A body moving at 4 m/s accelerates at 1 m/s² for 10 s. Find the distance travelled.

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

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

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3. 3.

   Physics

   Calculate the potential energy of a 39 kg object at a height of 4 m (g = 9.8 m/s²).

   Formula:Gravitational Potential Energy

   $PE = mgh$

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4. 4.

   Biology

   In a monohybrid cross (Aa × Aa) producing 40 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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5. 5.

   Biology

   Under a microscope, an object of actual size 1.4 mm appears 119 mm. Find the magnification.

   Formula:Microscope Magnification

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

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6. 6.

   Chemistry

   A solution is made by dissolving 6 g of solute in 125 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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7. 7.

   Quantitative Aptitude

   A vehicle covers 504 km in 7 hours. Find its average speed.

   Formula:Speed, Distance & Time

   $\text{Speed} = \dfrac{\text{Distance}}{\text{Time}}$

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8. 8.

   Biology

   In a monohybrid cross (Aa × Aa) producing 172 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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9. 9.

   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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10. 10.

    Chemistry

    A solution is made by dissolving 34 g of solute in 127 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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11. 11.

    Physics

    A body moving at 4 m/s accelerates at 7 m/s² for 9 s. Find the distance travelled.

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

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

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12. 12.

    Biology

    In a population at Hardy–Weinberg equilibrium, the recessive allele frequency q = 0.2. 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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13. 13.

    Quantitative Aptitude

    A vehicle covers 486 km in 6 hours. Find its average speed.

    Formula:Speed, Distance & Time

    $\text{Speed} = \dfrac{\text{Distance}}{\text{Time}}$

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14. 14.

    Chemistry

    Find the pressure of 4 mol of an ideal gas at 351 K in a 17 L container (R = 0.0821 L·atm·mol⁻¹·K⁻¹).

    Formula:Ideal Gas Law

    $PV = nRT$

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15. 15.

    Physics

    A body moving at 13 m/s accelerates at 6 m/s² for 6 s. Find the distance travelled.

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

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

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16. 16.

    Biology

    In a population at Hardy–Weinberg equilibrium, the recessive allele frequency q = 0.1. 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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17. 17.

    Biology

    Calculate the BMI of a person weighing 57 kg with height 1.79 m.

    Formula:Body Mass Index

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

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18. 18.

    Biology

    In a monohybrid cross (Aa × Aa) producing 176 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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19. 19.

    Physics

    Find the voltage across a 28 Ω resistor carrying a current of 7 A.

    Formula:Ohm's Law

    $V = IR$

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20. 20.

    Physics

    Find the momentum of a 28 kg body moving at 40 m/s.

    Formula:Linear Momentum

    $p = mv$

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