A solar panel measures 80 cm × 57 cm. In direct sunlight, the panel delivers 3.1 A at 15 V. If the intensity of sunlight is 1 000 W/m2, what is the efficiency of the solar panel in converting solar energy into electrical energy?
a. 20%
b. 15%
c. 10%
d. 5%
e. 8%
c
Physics & Space Science
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Which of the following is fundamentally different from the others?
A) sound waves B) X-rays C) gamma rays D) light waves E) radio waves
Physics & Space Science
The statistical interpretation associated with the wave function originated with
A. Born. B. Bohr. C. Einstein. D. Schrödinger. E. Planck.
Physics & Space Science
The unit of inductance, the henry, is equivalent to:
a. J/C. c. V•s/A. b. V/m. d. none of the units given.
Physics & Space Science
Determine the heat capacity (in calories/°C) of a lake containing one million gallons (approximately 4 million kilograms) of water at 15°C.
A. 4 × 106 B. 4 × 109 C. 4 × 103 D. 1 × 103 E. 4 × 102
Physics & Space Science