An Air Wedge Is Formed Using Two Glass Plates That

question 24

Multiple Choice

An air wedge is formed using two glass plates that are in contact along their left edge.When viewed by highly monochromatic light, there are exactly 4001 dark bands in the reflected light.The air is now evacuated (with the glass plates remaining rigidly fixed) and the number of dark bands decreases to exactly 4000.The index of refraction of the air is:

• A)0.00025
• B)0.00050
• C)1.00025
• D)1.00050
• E)1.00000, by definition

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Definitions:

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