A sphere and a cube of same material and same volume are heated upto same temperature and allowed to cool in the same surroundings. The ratio of the amounts of radiations emitted will be

• A.            1 : 1                                          
• B.            \[\frac{4\pi }{3}\,\,:\,\,1\]
• C.            \[{{\left( \frac{\pi }{6} \right)}^{1/3}}:\,\,1\]                   
• D.            \[\frac{1}{2}\,{{\left( \frac{4\pi }{3} \right)}^{2/3}}:\,\,1\]