Depth of water
Depth of water
Depth of water
Depth of water
Depth of water
Depth of water
Depth of water
Depth of water
I think what you mean is a light house. light house means is tower with a light that gives warning of shoals to passing ships
The condenser adjusts the amount of light passing through the specimen.
the bending of light when passing through an object
a house with light...
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