Properties of EM Waves: Practice Problem & Solution

Assertion (A): Infrared waves are often called heat waves. Reason (R): Infrared waves vibrate not only electrons but entire atoms or molecules.

Both (A) \(&\) (R) are true and the (R) is the correct explanation of the (A)

Both (A) \(&\) (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Properties of EM Waves. Understanding the underlying formula is key to arriving at the correct answer below:

Infrared waves are absorbed by molecules, increasing their vibrational and rotational energy, which manifests as heat. Thus, both A and R are true, and R explains A.

Properties of EM Waves: Practice Problem & Solution

Short Solution (Best for NEET):

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