Q.

Assertion: Electromagnetic waves interact with matter and set up oscillations.
Reason:   Interaction is independent of the wavelength of the electromagnetic waves.
 

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a

 If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

b

 If the Assertion is incorrect and Reason is correct.

c

 If the Assertion is correct but Reason is incorrect.

d

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

answer is C.

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Detailed Solution

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Electromagnetic waves interact with matter via their electric and magnetic field which in oscillation of charges present in all matter. The detailed interaction and so the mechanism of absorption, scattering, etc. depend of the wavelength of the electromagnetic wave, and the nature of the atoms and molecules in the medium.

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Assertion: Electromagnetic waves interact with matter and set up oscillations.Reason:   Interaction is independent of the wavelength of the electromagnetic waves.