Question

1. Once in a Summer day, John keeps an iron chair in sunlight. After few hours, iron chair gets heated because

(A) Heat is transferred by conduction ( B) Heat is transferred by convection

(C) Heat is transferred by radiation ( D) Heat is transferred by all the process​

Answer 1

Answer:

All of the above

Explanation: Through Radiation the Iron Chair will get heated  , Through Convection the atmospheric air will transfer its heat to Chair and through conduction the hot floor will start transferring heat to chair.

Answer 2

Solution:

Option d is correct in that Heat is transferred by all processes.

Explanation:

• During a summer day, it iron chair is kept in sunlight then after a few hours, it gets heated.
• It is because of radiation, conduction, and convection.
• Through radiation, the iron chair is directly heated.
• Through convection, heat is transferred by the movement of heated air to the chair.
• Through conduction, the floor heated by sun radiation is transferred to the chair as a result chair is heated.
• Hence option d is correct.