BITSAT 2009
- Exam
- BITSAT
- Year
- 2009
- Subject
- Physics
- Chapter
- Electromagnetic Waves
BITSAT 2009 · Physics · Electromagnetic Waves
The magnetic field in a travelling electromagnetic wave has a peak...
The magnetic field in a travelling electromagnetic wave has a peak value of . The peak value of electric field strength is
Options
- A
- B
- C
- D
Correct answer
B.
Step-by-step solution
\overrightarrow{\mathrm{E}_{0}=\overrightarrow{\mathrm{B}_{0} \times \overrightarrow{\mathrm{C}}\left|\overrightarrow{\mathrm{E}_{0}\right|=\left|\mathrm{B}_{0}\right| \cdot|\overrightarrow{\mathrm{C}}|=20 \times10^{-9} \times3 \times10^{8}=6 \mathrm{ V}/