Two spheres of the same material have radii 1 m and 4 m and tempe… - Vidyadip

MCQ

Two spheres of the same material have radii $1\ m$ and $4\ m$ and temperatures $4000\ K$ and $2000\ K$ respectively. The ratio of the energy radiated per second by the first sphere to that by the second is

✓
$1:1$
B
$16:1$
C
$4:1$
D
$1:9$

✓

Answer

Correct option: A.

$1:1$

a
$\frac{{{A_1}T_1^4}}{{{A_2}T_2^4}} = 1$

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