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The illumination from a source of light varies inversely as the square of the distance. A book is at a distance of 18 cm from a lamp. How much (in cm) further the book is to be removed so that it receives one-fourth as much light?
18
24
16
32
18
Practice and solve "The illumination from a source of light varies inversely as the square of the distance. A book is at..." for Part 2 Numerical Ability - CIL MT Civil 2026. The correct answer is Option A: 18. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "The illumination from a source of light varies inversely as the square of the distance. A book is at..." for Part 2 Numerical Ability - CIL MT Civil 2026. The correct answer is Option A: 18. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
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