The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by 
in SI units. Find the average power per square meter carried by the EM wave.
A. 720 W
B. 172 W
C. 500 W
D. 2 × 107 W
E. 86 W
Answer: B
You might also like to view...
Selective _________is the selective removal of one element from a metal alloy.
Fill in the blank(s) with the appropriate word(s).
A 2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kN. What is the frequency of the fundamental mode of vibration of this wire?
A) 204 Hz B) 102 Hz C) 408 Hz D) 510 Hz E) 153 Hz
Suppose you lived on the Moon near the center of the face that we see from Earth. During the phase of new Moon, what phase would you see for Earth? Would it be day or night at your home?
What will be an ideal response?
A uniform film of oil (n = 1.31) is floating on water. When sunlight in air is incident normally on the film, an observer finds that the reflected light has a brightness maximum at ? = 450 nm and a brightness minimum at ? = 600 nm. What is the thickness of the oil film?