Body Mass Index (BMI) is calculated using a person’s height and weight to determine their body fat relative to their body structure.
The formula for BMI is:
\(BMI = \frac{Weight (kg)} {Height (m)^2}\)
It is a simple tool to classify individuals into categories like underweight, normal weight, over-weight, or obese.
- Option (a): Only height is insufficient for BMI.
- Option (b): Weight alone cannot determine BMI.
- Option (c): Lean tissue is not directly measured by BMI.
Thus, BMI depends on both height and weight.
| Case No. | Lens | Focal Length | Object Distance |
|---|---|---|---|
| 1 | \(A\) | 50 cm | 25 cm |
| 2 | B | 20 cm | 60 cm |
| 3 | C | 15 cm | 30 cm |