Question

1. explain why higher-frequency waves on the em spectrum (like x-rays or gamma rays) require greater caution when being used by humans.

Explanation:

Higher - frequency EM waves (like X - rays, gamma rays) have higher energy (since energy $E = hf$, where $h$ is Planck's constant and $f$ is frequency). Higher energy means they can ionize atoms/molecules, damaging cells (e.g., causing mutations, tissue damage). So more caution is needed to avoid exposure - related harm.

Answer:

Higher - frequency EM waves (e.g., X - rays, gamma rays) have higher energy ($E = hf$, $h$ = Planck's constant, $f$ = frequency). This high energy can ionize atoms/molecules, damaging cells (e.g., mutations, tissue damage), so greater caution is required to prevent harm from exposure.