Q316
The base of an electric iron is brightly polished mainly
A.
To make it smooth and frictionless
B.
To make it rust-proof
C.
To reduce heat loss by radiation
AnswerD.
To make it more durable
Answer: Option C
Solution
Answer: Option C
Solution:
Polished surfaces are poor radiators of heat. So loss of heat on that account is reduced and the electric iron remains hotter than otherwise.