Physics · 2019
JEE Main · 8 April 2019, Shift 2 · Q22
The magnetic field of an electromagnetic wave is given by: B =1.6 × 10^-6 cos (2 × 10^7 z +6 × 10^15 t )(2 i + j ) Wb/(m^2) The associated electric…
The magnetic field of an electromagnetic wave is given by :
$$\overrightarrow{\mathrm{B}}=1.6 \times 10^{-6} \cos \left(2 \times 10^7 \mathrm{z}+6 \times 10^{15} \mathrm{t}\right)(2 \hat{i}+\hat{j}) \frac{\mathrm{Wb}}{\mathrm{~m}^2}
$$
The associated electric field will be :
Official answer
(1)
$\displaystyle \overrightarrow{\mathrm{E}}=4.8 \times 10^2 \cos \left(2 \times 10^7 \mathrm{z}+6 \times 10^{15} \mathrm{t}\right)(-\hat{i}+2 \hat{j}) \frac{\mathrm{V}}{\mathrm{~m}}$
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 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.