Consider an electromagnetic wave traveling in the positive y direction. The magnetic field associated with the wave at some location at some instant points in the negative x direction as shown in Figure OQ34.11. What is the direction of the electric field at this position and at this instant?
1.the positive x direction
2.the positive y direction
3.the positive z direction
4.the negative z direction
5.the negative y direction
Question 2Rank the following kinds of waves according to their speeds from fastest to slowest:
(a) gamma rays
(b) microwaves
(c) radio waves
(d) visible light
(e) x-rays
1.c > b > d > e > a
2.b > c > e > b > a
3.a > e > d > b > c
4.e = a = c = d = b
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