Ray Optics: Refraction and Lenses
Refraction and Lenses: Audio Guided Solution
Problem Set RL3, Question 1:
Consider the right triangle shown at the right. If x = 48.1 cm and y = 29.1 cm, then what is the angle theta (in degrees)?
Audio Guided Solution
Habits of an Effective Problem Solver
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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.
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Identify the known and unknown quantities in an organized manner. Equate given values to the symbols used to represent the corresponding quantity - e.g., do = 24.2 cm; di= 16.8 cm; f = ???.
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Use physics formulas and conceptual reasoning to plot a strategy for solving for the unknown quantity.
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Identify the appropriate formula(s) to use.
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Perform substitutions and algebraic manipulations in order to solve for the unknown quantity.
Watch It!
Watch a portion of our YouTube video on the topic fo SOH CAH TOA and the relationship between the sides of a right triangle and the angle measures.