NEET 2018
- Exam
- NEET
- Year
- 2018
- Subject
- Physics
- Chapter
- Electromagnetic Waves
NEET 2018 · Physics · Electromagnetic Waves
An EM wave is propagating in a medium with a velocity → V = V ^ i ....
An EM wave is propagating in a medium with a velocity \overset{\to}{V} = V\overset{^}{i}. The instantaneous oscillating electric field of this em wave is along axis. Then the direction of oscillating magnetic field of the EM wave will be along
Options
- A direction
- B direction
- C direction
- D direction
Correct answer
B. direction
Step-by-step solution
\overset{^}{V} = \overset{^}{E} \times \overset{^}{B} , \overset{^}{i} = \overset{^}{j} \times \overset{^}{k}
∴ \overset{^}{B} = \overset{^}{k} , direction
∴ \overset{^}{B} = \overset{^}{k} , direction