A black body radiates 5 J per square centimetre per second at 2 7 ∘ C. How much does it radiate per square centimetre per second at 32 7 ∘ C?

T doubles from 300 K to 600 K, so the power is 2 4 = 16 times: 5 × 16 = 80 J. C.

Start Free Mock LoginAlready registered? Login here

Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferEasy2 min

PhysicsEasysingle choice

A black body radiates 5 J per square centimetre per second at $2 7^{\circ}$ C. How much does it radiate per square centimetre per second at $32 7^{\circ}$ C?

Options:

Answer:

Solution:

$T$ doubles from 300 K to 600 K, so the power is $2^{4} = 16$ times: $5 \times 16 = 80$ J. C.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

⏱ 2m

Doubts & Discussion

Loading discussions...