Physics - EM Waves Question with Solution | TestHub
PhysicsEM WavesEM WavesMedium2 minPYQ_2025
PhysicsMediumsingle choice
Due to presence of an em-wave whose electric component is given by , a cylinder of length 200 cm holds certain amount of em-energy inside it. If another cylinder of same length but half diameter than previous one holds same amount of em-energy, the magnitude of the electric field of the corresponding em-wave should be modified as
Options:
Answer:
B
Solution:
Energy density of an , whare is the amplitude of the wave.
Since total energy is same for both cylinders
The amplitude of corresponding wave is 200 N/C
or the wave is
Stream:JEESubject:PhysicsTopic:EM WavesSubtopic:EM Waves
⏱ 2mℹ️ Source: PYQ_2025
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