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A designer wants to create a device that spreads light from a small bulb to illuminate a wide area uniformly. Which lens should be used and why?
A plane glass, because it transmits light without bending
A prism, because it bends light at an angle
A convex lens, because it converges light rays
A concave lens, because it diverges light rays outward
A concave lens, because it diverges light rays outward
Practice and solve "A designer wants to create a device that spreads light from a small bulb to illuminate a wide area u..." for Mathematics - Previous Year Paper 2025. The correct answer is Option D: A concave lens, because it diverges light rays outward. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "A designer wants to create a device that spreads light from a small bulb to illuminate a wide area u..." for Mathematics - Previous Year Paper 2025. The correct answer is Option D: A concave lens, because it diverges light rays outward. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.