Physics, asked by lucabrasi8409, 5 months ago

Two bulbs have filament of length emissivities and diameter in the ratio 2:1.if ratio of their power is 1:2 the ratio of their temperature is

Answers

Answered by bansaldeepanshi21
0

Answer:

We know that emission from the surface is given by following relation:

E=εσAT

4

E

2

E

1

=

ε

2

A

2

T

2

4

ε

1

A

1

T

1

4

E

2

E

1

=

4ε×d×2L×3

4

3ε×2d×L×2

4

=

27

4

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