What primary color must be added to magenta light to produce white light?
A. Yellow
B. Blue
C. Green
D. Red
E. Magenta
Answer: C
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Parallel-Plate Capacitor: Two ideal parallel-plate capacitors are identical in every respect except that one has twice the plate area of the other. If the smaller capacitor has capacitance C, the larger one has capacitance
A. C/2. B. C. C. 2C. D. 4C.
What is the wavelength (in meters) of a wave whose displacement is given by y = 0.5 sin(0.20x + 120t), where x and y are in meters and t in seconds?
A) 5.0 m B) 10. m C) 19. m D) 31. m E) 0.20 m
If the intensity of an electromagnetic wave is 80 MW/m2, what is the amplitude of the magnetic field of this wave? (c = 3.0 × 108 m/s, ?0 = 4? × 10-7 T ? m/A, ?0 = 8.85 × 10-12 C2/N ? m2)
A) 0.82 mT B) 0.33 µT C) 10 T D) 14 T E) 0.58 mT
A __________ is a three dimensional image made using a laser
Fill in the blank(s) with correct word