Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion Like light radiation, thermal radiations are also electromagnetic radiation. Reason The thermal radiations require no medium for propagation.A) if both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
B) if both Assertion and Reason are true but the Reason is nor the correct explanation of the Assertion
C) if Assertion is true but Reason is false
D) if Assertion and Reason are false
Correct Answer: B
Solution :
Light radiations and thermal radiations both belong to electromagnetic spectrum. Light radiation belongs to visible while thermal radiation belongs to infrared region of EM spectrum. Also EM radiations require no medium for propagation.
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