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Electromagnetic Waves question

2021 · 26 Feb · Shift 1 · Q70

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JEE Main
Physics
Electromagnetic Waves
2021 · 26 Feb · Shift 1 · Q70

Electromagnetic Waves question

2021 · 26 Feb · Shift 1 · Q70

JEE MainPhysicsElectromagnetic WavesNumerical+4 / −1

A radiation is emitted by 1000W bulb and it generates an electric field and magnetic field at P, placed at a distance of 2m. The efficiency of the bulb is 1.25%. The value of peak electric field at P is x

\times

10

-

1 V/m. Value of x is

\underline{\hspace{2cm}}

. (Rounded off to the nearest integer) [Take

{\varepsilon _0} = 8.85 \times {10^{ - 12}}

C2N

-

1 m

-

2, c =

3 \times {10^8}

ms

-

1]

Numerical answer

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