What Problem Do Refractor Telescopes Have That Reflectors Don't

question 43

Multiple Choice

What problem do refractor telescopes have that reflectors don't?

• A)diffraction limited resolution
• B)light loss from secondary elements
• C)chromatic aberration
• D)spherical aberration
• E)bad seeing

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Conventional Cash Flows

Cash flow patterns characterized by an initial outlay or investment followed by a series of positive returns, commonly seen in traditional investments.

Required Return

The minimum expected return by investors for investing in a particular security or project, taking into account the risk associated with it.

Net Present Value

The difference between the present value of cash inflows and the present value of cash outflows over a period of time, used to analyze the profitability of a projected investment or project.

Mutually Exclusive Projects

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