Question

Two spherical black bodies A and B, having radii R1 and R2 where R2=2R1

Answer 1

Answer:

E=εσAT

4

Given that both spherical body radiate with same power.

So equating E

1

=E

2

A=4πr

2

r

1

2

T

1

2

=r

2

2

T

2

4

r

2

r

1

=(

T

1

T

2

)

2