PhysicsJEE Main 22 Jan 2026, Shift 2·Q18·MCQ·Easy–moderate

Electromagnetic Waves · EM waves

A laser beam has intensity of

4.0\times10^{14}\ \mathrm{W/m^2}

. The amplitude of magnetic field associated with beam is T. (Take

\epsilon_0 = 8.85\times10^{-12}\ \mathrm{C^2/Nm^2}

and

c = 3\times10^{8}

m/s)

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