Physics · 2020
JEE Main · 9 January 2020, Shift 2 · Q16
A plane electromagnetic wave is propagating along the direction (i + j)/(√ 2), with its polarization along the direction k. The correct form of the…
A plane electromagnetic wave is propagating along the direction $\displaystyle \frac{\hat{i}+\hat{j}}{\sqrt{2}}$, with its polarization along the direction $\displaystyle \hat{k}$. The correct form of the magnetic field of the wave would be (here $\displaystyle \mathrm{B}_0$ is an appropriate constant) :
Official answer
(3)
$\displaystyle \mathrm{B}_0 \frac{\hat{i}-\hat{j}}{\sqrt{2}} \cos \left(\omega \mathrm{t}-k \frac{\hat{i}+\hat{j}}{\sqrt{2}}\right)$
More from Electromagnetic Waves
- An electromagnetic wave of frequency 3 GHz enters a dielectric medium of relative electric permittivity 2.25 from vacuum. The wavelength of this wave…2021
- The electric field in an electromagnetic wave is given by E=56.5 sin ω(t-x / c) NC^-1. Find the intensity of the wave if it is propagating along x…2022
- The equation of the electric field of an electromagnetic wave propagating through free space is given by: E=√377 sin (6.27 × 10^3 t-2.09 × 10^-5 x) N…2026
- Given below are two statements: Statement I: A time varying electric field is a source of changing magnetic field and vice-versa. Thus a disturbance…2022
- Choose the correct answer from the options given below:2026
- A point source of light is placed at the centre of curvature of a hemispherical surface. The source emits a power of 24 W. The radius of curvature of…2023
- Which of the following Maxwell's equation is valid for time varying conditions but not valid for static conditions:2023
- Arrange the following in the ascending order of wavelength (λ): Microwaves (λ_1) Ultraviolet rays (λ_2) Infrared rays (λ_3) X-rays (λ_4) Choose the…2025
JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.