Light That Has Been Traveling in a Medium with an Index

question 56

Multiple Choice

Light that has been traveling in a medium with an index of refraction n₂ is incident on the boundary surface of another medium with an index of refraction n₁.Given a sufficient angle of incidence,which of the following conditions must be satisfied for total internal reflection to occur?

• A)n₁ < n₂
• B)n₁ > n₂
• C)n₁ = n₂
• D)Any of these may be correct.
• E)None of these is correct.

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Veto State Laws

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The fourth President of the United States, hailed as the "Father of the Constitution" for his pivotal role in drafting and promoting the U.S. Constitution and the Bill of Rights.

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Feature of the U.S. Constitution, sometimes called “checks and balances,” in which power is divided between executive, legislative, and judicial branches of the national government so that no one can dominate the other two and endanger citizens’ liberties.