Ratio of average electric field (E) to average magnetic field (B) is
A
speed of light
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
speed of oscillating particle
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
electric field of EM wave
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
magnetic field of EM wave
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A speed of light Average electric field energy density (E)=12∈0E2 ...(1)
Average magnetic field density (B)= 12μ0B2 ....(2)
on putting (1)=(2) 12∈0E2=12μ0B2 ∈0E2=1μ0B2∴E=CB
C = E/B