Question

People blow on glasses to clean their lenses. Why does this lens get wet?​

Answer 1

Answer:

People often blow out air onto the glass of spectacles before cleaning it. This is because, warm air when touches the cold glass surface, turns into small droplets of water. This moisture helps in cleaning the glass.

Explanation:

mark brainliest

Answer 2

Answer:

A transparent medium bounded by two surfaces of which at least one is spherical is called lens.

Explanation:

Here is your answer.