YESPYQ Start Practice
JEEPhysics

The electric field in an electromagnetic wave is given by \(\vec{E}=\hat{i}40\cos \omega (t-z/c)N{C}^{-1}\). The magneti…

Q1
PYQ

The electric field in an electromagnetic wave is given by \(\vec{E}=\hat{i}40\cos \omega (t-z/c)N{C}^{-1}\). The magnetic field induction of this wave is (in SI unit) :

a

\(\vec{B}=\hat{k}\frac{40}{c}\cos \omega (t-z/c)\)

b

\(\vec{B}=\hat{j}40\cos \omega (t-z/c)\)

c

\(\vec{B}=\hat{j}\frac{40}{c}\cos \omega (t-z/c)\)

d

\(\vec{B}=\hat{i}\frac{40}{c}\cos \omega (t-z/c)\)

🔒
Answer & explanation — PYQ Pass

Options are free to see. Unlock the correct answer and full explanation with Pass.

Unlock · ₹149
← Previous questionNext question →

Practice more JEE Physics PYQs

See every question on Electromagnetic Waves, or browse the full JEE question bank.

See all questions on Electromagnetic Waves →

More JEE Physics PYQs

PhysicsThe condition under which a microwave oven heats up a food item containing water molecules…PhysicsA plane electromagnetic wave of frequency 20 MHz travels in free space along the \(+x\) di…PhysicsThe value of \({E}_{0}\) is 9.3 V/m and c is 3 × \({10}^{8}\) m/s. Find the value of B 0 .…PhysicsDue to presence of an em-wave whose electric component is given by \(E=100\sin (\omega t-k…PhysicsA magnetic field vector in an electromagnetic wave is represented by \(\vec{B}={B}_{0}\sin…PhysicsThe electric field in an electromagnetic wave is given by \(\vec{E}=\hat{i}40\cos \omega (…