Consider the Image Formed by a Refracting Telescope

question 79

Multiple Choice

Consider the image formed by a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effect will this have?

• A)The top half of the image will be blacked out.
• B)The lower half of the image will be blacked out.
• C)The entire image will be blacked out, since the entire lens is needed to form an image.
• D)The image will appear as it would if the objective were not blocked, but it will be dimmer.
• E)There will be no noticeable difference in the appearance of the image with the objective partially blocked or not.

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Definitions:

MB = MC Rule

The principle that firms maximize profit by producing where marginal benefit (MB) equals marginal cost (MC), determining the optimal level of output.

Loanable Funds Theory

An economic theory that describes the market for borrowing and lending, where interest rates are determined by the supply of and demand for loanable funds.

Nominal Rate of Interest

The nominal interest rate on a loan or investment, before adjusting for inflation.

Real Rate of Interest

The real rate of interest is the rate of interest an investor expects to receive after allowing for inflation, reflecting the true earning potential of an investment.