Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Waves

Question:

The electric field vector oscillates according to the equation $\vec E = 4\sin[1.8y+(5.4×10^6)t]\hat k$. The equation of magnetic field vector is:

Options:

$\vec B=1.33×10^{-8} \sin[1.8y +(5.4×10^6)t]\hat i$

$\vec B=4\sin[1.8y+(5.4×10^4)i]\hat j$

$\vec B=1.33×10^{-8} \sin[1.8y +(5.4×10^6)t]\hat k$

$\vec B=5\sin[1.8y+(5.4×10^4)i]\hat j$

Correct Answer:

$\vec B=1.33×10^{-8} \sin[1.8y +(5.4×10^6)t]\hat i$

Explanation:

The correct answer is Option (1) → $\vec B=1.33×10^{-8} \sin[1.8y +(5.4×10^6)t]\hat i$