Ace A Level Physics 2025 – Power Up Your Physics Prowess!

The main reason users should avoid shining a laser at people is that it can result in serious eye or skin injury. Lasers emit light that is highly concentrated and can cause damage to sensitive tissues. When directed towards the eyes, even a brief exposure to laser light can lead to permanent vision impairment or blindness, as the intense light can burn the retina. Skin exposure to lasers can also result in burns or other injuries, depending on the power of the laser and the duration of exposure.

This understanding underscores the safety precautions necessary when using lasers, highlighting the potential harm they can cause in a way that is both immediate and severe.