Magnetic field in a plane electromagnetic wave is given by, B → = B 0 sin k x + ω t j ^ T . Expression for corresponding electric field will be: (Where c is speed of light)

For electromagnetic wave speed of light is given by c = E 0 B 0 Electric field is expressed as E 0 = c B 0 , E → i s ⊥ to direction x and direction o f B → The expression of electric field is E → = c B 0 s i n ⁡ ( k x + w t ) k ^ V m - 1

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Physics - EM Waves Question with Solution | TestHub

PhysicsEM WavesElectromagnetic wavesEasy2 minPYQ_2017

PhysicsEasysingle choice

Magnetic field in a plane electromagnetic wave is given by,

$\vec{B} = B_{0} \sin (k x + ω t) \hat{j} T$ . Expression for corresponding electric field will be:

(Where $c$ is speed of light)

Options:

Answer:

Solution:

For electromagnetic wave speed of light is given by

$c = \frac{E_{0}}{B_{0}}$
Electric field is expressed as $E_{0} = c B_{0}, \vec{E} i s ⊥ to direction x and direction o f \vec{B}$

The expression of electric field is $\vec{E} = c B_{0} s i n (k x + w t) \hat{k} V m^{- 1}$

Stream:JEESubject:PhysicsTopic:EM WavesSubtopic:Electromagnetic waves

⏱ 2mℹ️ Source: PYQ_2017

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