How Many Square Meters of Photovoltaic Cells Would Be Required

question 37

Multiple Choice

How many square meters of photovoltaic cells would be required to light a 100-W bulb? The efficiency of photovoltaic cells is 15% for converting 1000 W/m ² of solar energy to electricity.

• A) 6.6 × 10 ^{− 1} m²
• B) 15 m²
• C) 67 m²
• D) 200 m²
• E) 275 m²

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Definitions:

Risk-Free Rate

The theoretical rate of return on an investment with no risk of financial loss, typically represented by government bonds.

Standard Deviation

A statistical measure of the dispersion or variability in a dataset, commonly used in finance to measure the volatility or risk associated with a particular investment.

Optimal

Referring to the most favorable or advantageous condition or level.

Optimal Risky Portfolio

A portfolio composition that offers the highest expected return for a given level of risk or the lowest risk for a given level of expected return.