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Physics - EM Waves Question with Solution | TestHub

PhysicsEM WavesElectromagnetic wavesEasy2 minPYQ_2018

PhysicsEasysingle choice

The magnetic field in a travelling electromagnetic wave has a peak value of $20 nT$ . The peak value of electric field strength is

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Solution:

From question, $B_{0} = 20 nT = 20 \times 1 0^{- 9} T$ $E_{0} = B_{0} \times C$ $E_{0} = B_{0} ∣.∣ C ∣= 20 \times 1 0^{- 9} \times 3 \times 1 0^{8} = 6 V / m .$ $(∵$ velocity of light in vacuum $C = 3 \times 1 0^{8} ms^{- 1})$

Stream:VITEEESubject:PhysicsTopic:EM WavesSubtopic:Electromagnetic waves

⏱ 2mℹ️ Source: PYQ_2018

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