The electric field in an electromagnetic wave is given by : E = (50 N/C ) sin (t- x c )…
Physics · NEET · NTA Exams — Electromagnetic Waves
The electric field in an electromagnetic wave is given by :
E = (50 N/C) sin \(\omega\left(t-\frac{x}{c}\right)\)
If the energy contained in a cylinder of cross-section 10 cm2 and length 50 cm along the x-axis then the intensity of the wave is :
E = (50 N/C) sin \(\omega\left(t-\frac{x}{c}\right)\)
If the energy contained in a cylinder of cross-section 10 cm2 and length 50 cm along the x-axis then the intensity of the wave is :
- 55 × 10–12 J
- 5.5 × 10–10 J
- 55 × 10–10 J
- 5.5 × 10–12 J
Answer
(B) 5.5 × 10 –10 J
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