What is the heat lost from the body of a person her hour whose body temperature is `37^(@)`C and the surrounding temperature is `20^(@)`C ? The emissivity of the skin is 0.92 and the surface area of skin is `1.6 m^(2)` . (Asssume that the person is unclothed.)

Explanation

To find the heat lost from the body of a person per hour, we can use the Stefan-Boltzmann law. Here’s a step-by-step solution:

### Step 1: Convert temperatures to Kelvin
The body temperature is given as \(37^\circ C\) and the surrounding temperature as \(20^\circ C\). We need to convert these temperatures to Kelvin.

- Body temperature in Kelvin:
\[
T = 37 + 273 = 310 \, K
...