JEE Main 10 April 2015 Paper

Section: Physics

Question : 23 of 90

Marks: +1, -0

An electromagnetic wave travelling in the x-direction has frequency of 2×1014 Hz and electric field amplitude of 27Vm−1.From the options given below, which one describes the magnetic field for this wave ?

[Main 10 April 2015]

→
B
(x,t)=(3×10−8T)
∧
j
sin[2π(1.5×10−8x−2×1014t)]
→
B
(x,t)=(9×10−8T)
∧
k
sin[2π(1.5×10−6x−2×1014t)]
→
B
(x,t)=(9×10−8T)
∧
i
sin[2π(1.5×10−8x−2×1014t)]
→
B
(x,t)=(9×10−8T)
∧
j
sin[1.5×10−6x−2×1014t]

Validate

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