For a regular polygon, let r and R be the radii of the inscribed and the circumscribed circles. A false statement among the following is
(a) r/R = 1/2
b) r/R = 1/√2
(c) r/R = 2/3
(d) r/R = √3/2
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A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.
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