Question

it is said that things are not visibl without dust particals. then in vacuum their are no dust particals then how we can see the objects
please tell me the answer

I can't sleep without having the answer.

please please......​

Answer 1

Answer:

• Atoms are small. Really, really small. You’ll probably have heard that matter is made of bundles of these tiny things. You’ll likely also know that you can’t see them with the naked eye. We are told to take on trust the idea that atoms are there, interacting with each other and being building blocks for our world.
• For most people, though, that’s not good enough. Science prides itself on the way it uses real observations to work out the mysteries of the universe – so how did we come to conclude that atoms exist, and what have we learned about these tiny structures?
• It might seem as if there’s a simple way to prove atoms exist: put them under the microscope. But this approach won’t work. In fact, even the most powerful light-focusing microscopes can’t visualise single atoms. What makes an object visible is the way it deflects visible light waves. Atoms are so much smaller than the wavelength of visible light that the two don’t really interact. To put it another way, atoms are invisible to light itself. However, atoms do have observable effects on some of the things we can see

Answer 2

ANSWER

An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across. They are so small that accurately predicting their behavior using classical physics—as if they were tennis balls, for example—is not possible due to quantum effects