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If the power of a lens is โ4 D, which of the following is true about the lens?
It is a concave lens of focal length 0.4 m.
It is a convex lens of focal length 2.5 m.
It is a concave lens of focal length 25 cm.
It is a convex lens of focal length 25 cm.
It is a concave lens of focal length 25 cm.
Practice and solve "If the power of a lens is โ4 D, which of the following is true about the lens?..." for General Science - Previous Year Paper 2024. The correct answer is Option C: It is a concave lens of focal length 25 cm.. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "If the power of a lens is โ4 D, which of the following is true about the lens?..." for General Science - Previous Year Paper 2024. The correct answer is Option C: It is a concave lens of focal length 25 cm.. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.