78. Radius of two spheres of same material are
1& 4 m respectively and their
temp, are 4x10³ and 2x10³
K respectively. Then ratio of emitted
energy of spheres per sec, will be
(a) 12
(b) 2:1
(c) 1:1
(d) 4:1
1& 4 m respectively and their
temp, are 4x10³ and 2x10³
K respectively. Then ratio of emitted
energy of spheres per sec, will be
(a) 12
(b) 2:1
(c) 1:1
(d) 4:1
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