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Two lens of power (+ 4 D) and (- 6 D) are placed in contact with each other. What will be their combined focal length in cm?
50 cm
Practice and solve "Two lens of power (+ 4 D) and (- 6 D) are placed in contact with each other. What will be their comb..." for General Science - Previous Year Paper 2025. The correct answer is Option B: 50 cm. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "Two lens of power (+ 4 D) and (- 6 D) are placed in contact with each other. What will be their comb..." for General Science - Previous Year Paper 2025. The correct answer is Option B: 50 cm. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.