The inside of a vacuum flak is usually coated with silver to reduce heat loss by

P.blessed

10 years ago

Radiation

Nk johnson

10 years ago

the ansa is radiation

prince hamsel

10 years ago

The selected answer is wrong:

the silvered surface of a thermos flask prevent heat loss by radiation

Myschool Kelly

10 years ago

Thanks for your contributions. Correction has been made.

clintonopah

11 years ago

radiation.

T-emma

10 years ago

well done bro,u are right