Question

How can we protect our eyes while looking at a strong source of light?

• A. All of these
• B. By placing our hand in front of our eyes
• C. By not looking at directly
• D. By putting opaque thing in front of your eyes

Answer 1

The correct option is B

By placing our hand in front of our eyes

Strong sources of light, like Sun, emit very intense light which can damage our eyes. In order to look at them, the intensity must be reduced to an appropriate level. This could be achieved by using partially reflective, partially transparent media.
Therefore, reflective glasses can be used to protect our eyes while looking at a strong source of light.