Question

explain carefully how the heat losses due to conduction, convention and radiation are minimised in a vacuum flask​

Answer 1

Explanation:

The body loses 65% of its heat through radiation. Conduction (such as heat loss from sleeping on the cold ground). Heat is lost in air temperatures lower than 68°F (20°C). ... The body loses 10% to 15% of its heat through convection.

The body loses 65% of its heat through radiation. Conduction (such as heat loss from sleeping on the cold ground). Heat is lost in air temperatures lower than 68°F (20°C). The body loses about 2% of its heat through air conduction.