
To find:
a) The direction of the wave travel.
b) The direction of oscillation of the electric field.

Answer to Problem 1Q
Solution:
a) The direction of wave travel is along the positive direction of the z axis.
b) The direction of oscillation of electric field is along x axis.
Explanation of Solution
1) Concept:
Analyzing the given equation, we can find the direction of the
2) Given:
The equation of the magnetic field oscillating parallel to y axis is
3) Calculations:
a) From the given equation, the term ‘kz’ denotes that the wave is travelling along z direction. And the sign indicates that the wave is travelling along the positive z axis.
b) As the magnetic field is oscillating parallel to y axis and the wave is traveling along z direction. The electric field must oscillate parallel to x-axis, perpendicular to both, the direction of the propagation of wave and the magnetic field.
Conclusion:
Using the information of the given equation, we can indicate the direction of the wave and its electric and the magnetic field components.
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Chapter 33 Solutions
FUNDAMENTALS OF PHYSICS,AP ED.
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