The Intensity of the Waves from a Point Source at a Distance

question 82

Multiple Choice

The intensity of the waves from a point source at a distance d from the source is I.At what distance from the sources is the intensity equal to 2I?

• A)d/2
• B)d/
• C)d/4
• D)d/8

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Definitions:

Active Transport

The migration of molecules from a lower concentration zone to a higher concentration zone across a cell's membrane, an action that requires energy.

Concentration Gradient

The gradual difference in the concentration of solutes in a solution between two regions, often leading to the movement of molecules along the gradient during diffusion.

Molecules

The smallest unit of a chemical compound that can exist while retaining the properties of that compound.

Osmosis

The movement of water molecules through a semi-permeable membrane from a region of lower solute concentration to one of higher concentration, aiming to equalize concentrations.