Rankers Physics

Properties of EM Waves: Practice Problem & Solution

The frequency order for $\gamma$ -rays (b), X-rays (a), UV-rays (c) is (2000)
$b > a > c$
$a > b > c$
$c > b > a$
$a > c > b$

Solution Explained:

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:

Frequency is inversely proportional to wavelength. The order of increasing wavelength is $\gamma$ -rays, X-rays, UV-rays. Thus, the order of decreasing frequency is $\gamma$ -rays > X-rays > UV-rays, which corresponds to $b > a > c$ .

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