Question

A red hot iron ball is suspended from the ceiling of a room by a thin metallic wire.
$A)$The ball loses heat in the form of conduction and convection only.
$B)$ The loss of heat is least by conduction method.
$C)$ A convection current is set in the air.

Which of the following statement is true?

• A. Only B
• B. Both A and B
• C. Both B and C
• D. All are correct

Answer 1

The correct option is C Both B and C

(a) conduction, convection and radiation
(b) conduction since heat is lost by conduction only by the thin metallic wire
(c) convection currents are set up in air.