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Transmission of Heat — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsTransmission of Heat1 Mark
Question
Assertion : Like light radiations, thermal radiations are also electromagnetic radiation.
Reason : The thermal radiations require no medium for propagation.
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Answer

(b) Light radiations and thermal radiations both belongs to electromagnetic spectrum. Light radiations belongs to visible region while thermal radiation belongs to infrared region of $E M$ spectrum. Also $E M$ radiations requires no medium for propagation.

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