Properties of EM Waves: Practice Problem & Solution

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:

X-rays, $\gamma$ -rays, and heat rays (infrared) are part of the electromagnetic spectrum. $\beta$ -rays are streams of high-energy electrons or positrons, which are particles, not electromagnetic waves.