Question

the mode of heat transfer that does not require any medium

Answer 1

Answer:

"Radiation is the process in which heat is transmitted one place to other directly without intervening medium. ... Heat radiations also form a part of electromagnetic spectrum. Transfer of heat by radiation does not need any material medium. Energy from the sun comes to us by radiation."

Answer 2

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______ the mode of heat transfer that does not require any medium.

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Radiation is the mode of heat transfer that does not require any medium.