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An object is placed at a distance of 20cm before a concave mirror. A real image isobtained at a distance of 40cm from the mirror. The radius of curvature of mirror isa) 32.6cm b)-13.3cm c)-28.6cm d)-26.6cm |
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Answer» Answer: 0.266 m = d) 26.6 cm Step-by-step explanation: 1/distance of object from mirror + 1/distance of image from mirror = 2/r (The MEASUREMENTS MUST be in meter) 1/0.2 + 1/0.4 = 2/radius of curvature 7.5 = 2/r r = 2/7.5 = 0.266 METERS = 26.6 cm Hope you understood and hope it HELPED you. Please thank me. |
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