Consider the following statements Statement–I : Electromagnetic waves do not require any medium for their propagation Statement–II : de-Broglie’s relationship is not significant to the macroscopic objects. Now choose the correct option 1. Only statement I is correct 2.Only statement II is correct 3. Both the statements are correct 4. Both the statements are incorrect
Answers
Answer:
Both statement and explanation are true, but it is not the correct explanation for the statement
Explanation:
Electromagnetic waves are formed due to simultaneous oscillations in electric and magnetic field (both are perpendicular to each other and perpendicular to the propagation of the em wave). Both electric and magnetic fields can exist in a vacuum and do not need a material medium to exist or oscillate. So an electromagnetic wave can propagate without a medium.
These radiations carry energy with them, so when a body releases radiation it loses energy, which manifests into a temperature loss. When radiation (energy) is absorbed, the body gains energy which is manifested in the form of a temperature gain. This is basically a heat transfer with radiation.
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Answer:
the answer is 3 both statements are correct