Physics
When a strong beam of light is passed through a colloidal solution, the light will

Pass unchanged
Be reflected
Be absorbed
Be scattered

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Physics
An integrated circuit is more advantages than a coventional circuit because

They make the electric equipments more reliable and easier for servicing
If a part of the integrated circuit fails the entire circuit is simply replaced
All listed here
A faulty part of a conventional circuit may be difficult to locate and repair

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