Question

why there is no black light and why? ​

Answer 1

Hey mate!!

here's your answer...

»Light has an intensity or energy and frequency or wavelength, absence of those would result in black and an absence of light (not "black light").

When we see darkness it's because the intensity is very low.

»And if you ask....Can black light exist?

»Then yes,Ultraviolet lights are called “black lights” because human retinas are insensitive to UV. They don't actually make things look black. The absence of light is called black/dark. However, there are UV blacklights - they emit ultraviolet rays, not black in the true sense.

$<marquee>★Hope it will be helpful for you ☺★$

Answer 2

Explanation:

see the attachment for answers