Question

When a ray of light passes through a solution of and it is not visible,then the solution has
Particles smaller than 10⁻⁹ metre in diameter
Particles are colloidal
Particles are a suspension
particles of the order 10⁻⁷ metre in diameter.

Answer 1

Answer:

particle smaller than 10^-9 meter is very small to separate a beam of light. but when a solution has particle more than 10^-9 meter they are enough large now to separate a beam of light...

Answer 2

Answer:

answer: particles are smaller than 10^-9 meter in diameter

Explanation:

the particles of this solution are very small to be seen and are unable to reflect light that falls on them that's why we are unable to see the light passing through them.