The quantities of heat required to raise the temperature of two solid copper sphere of radii \( r_{1} \) and \( r_{2}\le…

The quantities of heat required to raise the temperature of two solid copper sphere of radii \( r_{1} \) and \( r_{2}\left(r_{1}=1.5 r_{2}\right) \) through \( 1 \mathrm{~K} \) are in the ratio