JEE Main 202313 AprilEvening Shift
- Exam
- JEE Main
- Year
- 2023
- Date
- 13 April
- Shift
- Evening Shift
- Subject
- Physics
- Chapter
- Electromagnetic Waves
JEE Main 2023 · 13 April · Evening Shift · Physics · Electromagnetic Waves
In an electromagnetic wave, at an instant and at a particular...
In an electromagnetic wave, at an instant and at a particular position, the electric field is along the negative z-axis and magnetic field is along the positive x-axis. Then the direction of propagation of electromagnetic wave is:
Options
- Apositive z-axis
- Bpositive y-axis
- Cat angle from positive y -axis
- Dnegative y-axis
Correct answer
D. negative y-axis
Step-by-step solution
Direction of propagation of the electromagnetic wave is along
Thus,
\overset{\to}{n} = E\left(- \overset{^}{k}\right) \times B\left(\overset{^}{i}\right)
Therefore,
\overset{^}{n} = - \overset{^}{k} \times \overset{^}{i} = - \overset{^}{j}