An Object Is Placed near a Concave Mirror Having a Radius

question 67

Multiple Choice

An object is placed near a concave mirror having a radius of curvature of magnitude 60 cm.How far should you place the object from the mirror so that the lateral magnification produced by the mirror will be +2.5?

• A)18 cm
• B)24 cm
• C)30 cm
• D)36 cm
• E)42 cm

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Definitions:

Short-term Memory

The ability to keep a limited quantity of data actively accessible in one's consciousness for a brief duration.

Miller

George A. Miller was an American psychologist who made significant contributions to the cognitive psychology field, notably proposing that the human mind can hold 7 ± 2 pieces of information in short-term memory.

Maintenance Rehearsal

A cognitive process of repeatedly reviewing information to be retained in short-term memory and possibly encoded into long-term memory.

Short-term Memory

The capacity for holding a small amount of information in an active, readily available state for a short period.