Question

The rectangular surface of area 8 cm × 4 cm of a black body
at temperature 127°C emits energy E per second. If the length
and breadth are reduced to half of the initial value and the
temperature is raised to 327°C, the rate of emission of energy
becomes
(a) 3/8 E (b) 81/16 E
(c) 9/16 E (d) 81/64 E

Answer 1

a 3/8 E mark me as brainliest if you like it