An Astronomical Telescope Has an Objective Lens with Focal Length

question 49

Multiple Choice

An astronomical telescope has an objective lens with focal length f_o and has an eyepiece with focal length f_e.A second telescope has objective and eyepiece lenses with triple the focal length of the first telescope.Which telescope gives the greater magnification and by what factor?

• A)The first telescope gives 9 times the magnification of the second.
• B)The second telescope gives 9 times the magnification of the first.
• C)Both telescopes give the same magnification.
• D)The actual focal lengths must be known to answer this question.

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Definitions:

Critical Race Theory

The study of the relationship among race, racism, and power.

Racism

Racism is a belief system or practices that regard different races as inherently superior or inferior to each other, often resulting in discrimination and prejudice based on racial or ethnic characteristics.

Power

The ability or capacity to influence or control the behavior of others, often through the possession of knowledge, wealth, or force.

Microaggression

Subtle, indirect, or unintentional discrimination against members of a marginalized group.