NEET / AIIMS · Practice Sheet 6

1. 1.

   Physics

   If 4,472 J of work is done in 23 s, find the power.

   Formula:Power

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

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2. 2.

   Physics

   Find the density of an object with mass 500 g and volume 29 cm³.

   Formula:Density

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

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3. 3.

   Biology

   In a monohybrid cross (Aa × Aa) producing 16 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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4. 4.

   Physics

   A body moving at 0 m/s accelerates at 6 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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5. 5.

   Physics

   Find the electrical power when 63 V drives a current of 15 A.

   Formula:Electrical Power

   $P = VI$

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6. 6.

   Physics

   Find the kinetic energy of a 3 kg object moving at 13 m/s.

   Formula:Kinetic Energy

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

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7. 7.

   Physics

   A body moving at 11 m/s accelerates at 1 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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8. 8.

   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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9. 9.

   Physics

   A force of 210 N acts on an area of 6 m². Find the pressure.

   Formula:Pressure

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

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10. 10.

    Biology

    Calculate the BMI of a person weighing 48 kg with height 1.68 m.

    Formula:Body Mass Index

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

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11. 11.

    Biology

    Under a microscope, an object of actual size 0.8 mm appears 24 mm. Find the magnification.

    Formula:Microscope Magnification

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

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12. 12.

    Physics

    Find the kinetic energy of a 20 kg object moving at 23 m/s.

    Formula:Kinetic Energy

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

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13. 13.

    Physics

    Find the momentum of a 9 kg body moving at 39 m/s.

    Formula:Linear Momentum

    $p = mv$

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14. 14.

    Physics

    A body moving at 3 m/s accelerates at 8 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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15. 15.

    Physics

    A force of 626 N acts on an area of 10 m². Find the pressure.

    Formula:Pressure

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

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16. 16.

    Biology

    In a monohybrid cross (Aa × Aa) producing 88 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

    A solution is made by dissolving 9 g of solute in 59 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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18. 18.

    Chemistry

    Find the pH of a solution with [H⁺] = 5×10⁻6 mol/L.

    Formula:pH of a Solution

    $pH = -\log_{10}[H^{+}]$

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19. 19.

    Chemistry

    26 mL of a 2 M solution is diluted to 202 mL. Find the new concentration.

    Formula:Dilution

    $M_1V_1 = M_2V_2$

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20. 20.

    Physics

    A constant force of 184 N moves an object 17 m in the direction of the force. Calculate the work done.

    Formula:Work Done

    $W = F\,d$

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