Reflection and Mirrors: Audio Guided Solution

Ray Optics: Reflection and Mirrors

Baldwin Young stands 68 cm from his dresser mirror, inspecting his scalp. How far is the image of his scalp located from his scalp?

136 cm

Read the problem carefully and develop a mental picture of the physical situation. If necessary, sketch a simple diagram of the physical situation to help you visualize it.
Identify the known and unknown quantities in an organized manner. Equate given values to the symbols used to represent the corresponding quantity - e.g., d_o = 24.2 cm; d_i= 16.8 cm; f = ???.
Use physics formulas and conceptual reasoning to plot a strategy for solving for the unknown quantity.
Identify the appropriate formula(s) to use.
Perform substitutions and algebraic manipulations in order to solve for the unknown quantity.

Get more information on the topic of Reflection and Mirrors at The Physics Classroom Tutorial.

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