Two Plane Mirrors Make an Angle of 120º as Shown

question 3

Multiple Choice

Two plane mirrors make an angle of 120º as shown. An object is placed at O. When the eye is placed at E, it will observe images formed at

• A) 1 and 2.
• B) 2 and 3.
• C) 3 and 4.
• D) 1 and 4.
• E) 1 and 3.

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Definitions:

Semipermeable

Describes a barrier or membrane that allows certain substances to pass through it while blocking others.

Cell Wall

A rigid layer outside the plasma membrane of the cells of plants, fungi, and some bacteria, providing structural support and protection.

Plasma Membrane

The lipid bilayer that surrounds a cell, controlling the movement of substances in and out of the cell.

Cytoplasm

The gel-like substance inside the cell membrane excluding the nucleus, containing organelles and is the site of most cellular activities.