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Two copperr spheres of radii 6 cm and 12...

Two copperr spheres of radii 6 cm and 12 cm respectively are suspended in an evacuated enclosure. Each of them are at a temperature `15^(@)C` above the surroundings. The ratio of their rate of loss of heat is

A

`2:1`

B

`1:4`

C

`1:8`

D

`8:1`

Text Solution

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`1:4`
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GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS- MARCH 2015-SECTION-II
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