[" 63.Two discs one of density "7.2g" cm...

[" 63.Two discs one of density "7.2g" cm "],[" density "8.9gcm^(-3)" are of same mass and thickness."],[" Their M.I.are the ratio of : "],[[" (a) "(72)/(89)," (b) "(1)/(89times72)],[" (c) "(89)/(72)," (d) "((89times72))/(1)]]

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[" 63.Two discs one of density "7.2g" cm "],[" density "8.9gcm^(-3)" are of same mass and thickness."],[" Their M.I.are the ratio of : "],[[" (a) "(7*2)/(8*9)," (b) "(1)/(8*9times7*2)],[" (c) "(8*9)/(7*2)," (d) "((8*9times7*2))/(1)]]

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[" 63.Two discs one of density "7.2g" cm "],[" density "8.9gcm^(-3)" are of same mass and thickness."],[" Their M.I.are the ratio of : "],[[" (a) "(72)/(89)," (b) "(1)/(89times72)],[" (c) "(89)/(72)," (d) "((89times72))/(1)]]