Waves, Sound and Light: Light Waves
Light Waves: Audio Guided Solution
Extra Problem 19:
One of the bright bands in Young's interference pattern is located 43.3 mm from the central maximum. The screen is 201 cm from the pair of slits that serve as sources. The slits are 0.406 mm apart and are illuminated by the blue light from a hydrogen discharge tube (wavelength = 486 nm). How many bright lines are observed between the central maximum and the bright band at the 43.3-mm position? Do not include the central band in your count but do include the band at the 43.3-mm position in the count.
Audio Guided Solution
Habits of an Effective Problem Solver
An effective problem solver by habit approaches a physics problem in a manner that reflects a collection of disciplined habits. An effective problem-solver...
- ... reads the problem carefully and developd a mental picture of the physical situation. If necessary, sketch a simple diagram of the physical situation to help you visualize it.
- ... identifies the known and unknown quantities and record in an organized manner, often times they can be recorded on the diagram itself; equates given values to the symbols used to represent the corresponding quantity (e.g., v = 3.00x108 m/s, λ = 554 nm, f = ???).
- ... uses physics formulas and conceptual reasoning to plot a strategy for solving for the unknown quantity.
- ... identifies the appropriate formula(s) to use.
- ... performs substitutions and algebraic manipulations in order to solve for the unknown quantity.
Read About It!
The following pages from The Physics Classroom Tutorial may serve to be useful in assisting you in the understanding of the concepts and mathematics associated with these problems.
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