_:n94afa5ce22584136b60d74ac5113d1aaxb16
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"<p>We know, refractive index (RI) of a medium = (speed of light in the air)/(speed of light in the medium)</p>\r\n\r\n<p>According to the problem, 3/2 = (3 x 10^8 m/s)/(speed of light in glass)&nbsp;</p>\r\n\r\n<p>Hence, speed of light in glass =&nbsp;(3 x 10^8 m/s)/(3/2) = 2&nbsp;x 10^8 m/s .&nbsp; &nbsp; (Ans.)</p>"
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