1.

The electric field component of a wave in free space is given by E̅ = 10 cos (107 t + kZ)a̅y V/mFollowing is a list of possible inferences :1. Wave propagates along a̅y2. Wavelength X = 188.5 m3. Wave amplitude is 10 Wm4. Wave number = 0.33 rad/m5. Wave attenuates as it travelsWhich of these inferences can be drawn from E̅?

A. 1, 2, 3, 4 and 5
B. 2 and 3 only
C. 3 and 4 only
D. 4 and 5 only
Answer» C. 3 and 4 only


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