A plane electromagnetic wave of frequency 25 GHz is propagating in vacuum along the…

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Waves Sound and Physical Optics · Waves Sound and Physical Optics

Problem

A plane electromagnetic wave of frequency 25 GHz is propagating in vacuum along the z-direction. At a particular point in space and time, the magnetic field is given by B⃗=5×10−8j^ T\vec{B} = 5 \times 10^{-8} \hat{j} \text{ T}. The corresponding electric field E⃗\vec{E} is (speed of light c=3×108 ms−1c = 3 \times 10^8 \text{ ms}^{-1}). (1) 1.66×10−16i^ V/m1.66 \times 10^{-16} \hat{i} \text{ V/m} (2) −1.66×10−16i^ V/m-1.66 \times 10^{-16} \hat{i} \text{ V/m} (3) −15i^ V/m-15 \hat{i} \text{ V/m} (4) 15i^ V/m15 \hat{i} \text{ V/m}

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