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Physics - EM Waves Question with Solution | TestHub

PhysicsEM WavesElectromagnetic wavesMedium2 minPYQ_2024

PhysicsMediumsingle choice

An electromagnetic wave with poynting vector $6 Wm^{- 2}$ is absorbed by a surface area $12 m^{2}$ . The force on the surface is

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Answer:

Solution:

As $F = p A$ , but $p = \frac{1}{c}$ Force on the surface is given as So, $F = \frac{I A}{C} = \frac{6 \times 12}{3 \times 1 0 ^{8}} = 2.4 \times 1 0^{- 8} N$

Stream:VITEEESubject:PhysicsTopic:EM WavesSubtopic:Electromagnetic waves

⏱ 2mℹ️ Source: PYQ_2024

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