A Lens of Focal Length F Is Used to Project

question 80

Multiple Choice

A lens of focal length f is used to project an image of a solar eclipse on a flat sheet of paper.Which of the following image distances gives the clearest image in this case?

• A) f/2
• B) f
• C) 2f
• D) more than 10f
• E) less than f/10

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Definitions:

The New Negro

A term associated with the Harlem Renaissance, referring to African Americans in the early 20th century who advocated for racial pride, cultural self-expression, economic independence, and progressive politics.

Rural Black Culture

A subset of African American culture that developed in the countryside or non-urban areas of the United States.

Their Eyes Were Watching God

A novel by Zora Neale Hurston, published in 1937, celebrated for its rich narrative focusing on African American female identity and life in the early 20th century.

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The vibrant evening entertainment scene in Harlem, New York, known for its significant impact on the Jazz Age and as a cultural hub for African Americans during the 20th century.