Wave Characteristics: In an electromagnetic wave in free space, the electric and magnetic fields are
A. parallel to one another and perpendicular to the direction of wave propagation.
B. parallel to one another and parallel to the direction of wave propagation.
C. perpendicular to one another and perpendicular to the direction of wave propagation.
D. perpendicular to one another and parallel to the direction of wave propagation.
Answer: C
You might also like to view...
A 50 kg uniform ladder, 5.0 m long, is placed against a smooth wall at a height of h = 3.7 m. The base of the ladder rests on a rough horizontal surface whose coefficient of static friction is 0.40
An 80 kg block is suspended from the top rung of the ladder, just at the wall. In Figure 10.12, the magnitude of the force exerted on the base of the ladder, due to contact with the rough horizontal surface is closest to: A) 1,580 B) 1,560 C) 1,550 D) 1,600 E) 1,610
A large ice mass that flows on a land surface under the influence of gravity is called
a. a glacier. b. a land slide. c. an ice river. d. none of these.
A 0.40-m radius automobile tire accelerates from rest at a constant 2.0 rad/s2 over a 5.0 s interval. What is the tangential component of acceleration for a point on the outer edge of the tire during the 5.0-s interval?
a. 33 m/s2 c. 0.60 m/s2 b. 0.80 m/s2 d. 0.30 m/s2
Two waves travel simultaneously through the same medium. The first wave is described by y1(x,t) = (2.00 cm)cos[kx-?t] and the second wave by y2(x,t) = (3.00 cm)cos(kx-?t+?). If the resulting wave has an amplitude 4
00 cm, what is a possible value of ?? A) 0.782 rad B) 0.250 rad C) 0.644 rad D) 0.833 rad E) 1.32 rad