When a Beam of Light,originally Traveling in Air,enters a Piece

question 85

Multiple Choice

When a beam of light,originally traveling in air,enters a piece of glass having an index of refraction of 3/2,its speed

• A)increases by a factor of 3/2.
• B)is reduced to 2/3 its original value.
• C)is unaffected.

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Definitions:

Jamestown

The first permanent English settlement in North America, established in Virginia in 1607.

Spanish Rule

The period of history when various territories were under the administrative control and governance of Spain, particularly in the Americas and the Philippines.

1750

A year in the 18th century that witnessed numerous historical events, but without additional context, this entry doesn't point to a specific occurrence.

Successful European Settlements

Colonies or communities in new lands that were established by Europeans and thrived economically and socially.