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The side of a cube is (2.00 pm 0.01) cm....

The side of a cube is `(2.00 pm 0.01)` cm. The volume and surface area of cube are respectively :-

A

`(8.00 pm 0.12) cm^(3),(24.0 pm 0.24) cm^(2)`

B

`(8.00 pm 0.01)cm^(3),(24.0 pm 0.01)cm^(2)`

C

`(8.00 pm 0.04)cm^(3),(24.0 pm 0.06)cm^(2)`

D

`(8.00 pm 0.03)cm^(3),(24.0 pm 0.02)cm^(2)`

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The correct Answer is:
To solve the problem, we need to calculate the volume and surface area of a cube given the side length and its uncertainty. ### Step-by-Step Solution: 1. **Identify the given values:** - Side length of the cube, \( A = 2.00 \, \text{cm} \) - Uncertainty in side length, \( \Delta A = 0.01 \, \text{cm} \) 2. **Calculate the volume of the cube:** - The formula for the volume \( V \) of a cube is given by: \[ V = A^3 \] - Substituting the value of \( A \): \[ V = (2.00 \, \text{cm})^3 = 8.00 \, \text{cm}^3 \] 3. **Calculate the surface area of the cube:** - The formula for the surface area \( S \) of a cube is given by: \[ S = 6A^2 \] - Substituting the value of \( A \): \[ S = 6 \times (2.00 \, \text{cm})^2 = 6 \times 4.00 \, \text{cm}^2 = 24.00 \, \text{cm}^2 \] 4. **Calculate the uncertainty in volume (\( \Delta V \)):** - The formula for the percentage error in volume is: \[ \frac{\Delta V}{V} = 3 \times \frac{\Delta A}{A} \] - Substituting the values: \[ \frac{\Delta V}{8.00} = 3 \times \frac{0.01}{2.00} \] - Simplifying: \[ \frac{\Delta V}{8.00} = 3 \times 0.005 = 0.015 \] - Therefore: \[ \Delta V = 0.015 \times 8.00 = 0.12 \, \text{cm}^3 \] 5. **Calculate the uncertainty in surface area (\( \Delta S \)):** - The formula for the percentage error in surface area is: \[ \frac{\Delta S}{S} = 2 \times \frac{\Delta A}{A} \] - Substituting the values: \[ \frac{\Delta S}{24.00} = 2 \times \frac{0.01}{2.00} \] - Simplifying: \[ \frac{\Delta S}{24.00} = 2 \times 0.005 = 0.01 \] - Therefore: \[ \Delta S = 0.01 \times 24.00 = 0.24 \, \text{cm}^2 \] 6. **Final results:** - Volume of the cube with uncertainty: \[ V = 8.00 \pm 0.12 \, \text{cm}^3 \] - Surface area of the cube with uncertainty: \[ S = 24.00 \pm 0.24 \, \text{cm}^2 \] ### Conclusion: The volume and surface area of the cube are: - Volume: \( 8.00 \pm 0.12 \, \text{cm}^3 \) - Surface Area: \( 24.00 \pm 0.24 \, \text{cm}^2 \)

To solve the problem, we need to calculate the volume and surface area of a cube given the side length and its uncertainty. ### Step-by-Step Solution: 1. **Identify the given values:** - Side length of the cube, \( A = 2.00 \, \text{cm} \) - Uncertainty in side length, \( \Delta A = 0.01 \, \text{cm} \) ...
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