TG EAPCET 2024 (Online) 9th May Evening Shift | Electromagnetic Waves Question 2 | Physics

A plane electromagnetic wave of electric and magnetic fields $E_0$ and $B_0$ respectively incidents on a surface. If the total energy transferred to the surface in a time of $t$ is $U$, then the magnitude of the total momentum delivered to the surface for complete absorption is

$\frac{U E_0}{B_0}$

$\frac{U B_0}{E_0}$

$\frac{U_0}{E_0 B_0}$

$\frac{U B_0}{E_0^2}$

TG EAPCET 2024 (Online) 9th May Morning Shift

MCQ (Single Correct Answer)

-0

If the amplitude of the magnetic field part of a harmonic electromagnetic wave in vacuum is 270 nT , the amplitude of the electric field part of the wave is

$90 \mathrm{NC}^{-1}$

$81 \mathrm{NC}^{-1}$

$9 \mathrm{NC}^{-1}$

$30 \mathrm{NC}^{-1}$

TS EAMCET 2023 (Online) 12th May Evening Shift

MCQ (Single Correct Answer)

-0

The correct statement among the following is

Electromagnetic waves cannot travel in vacuum

Electromagnetic waves are longitudinal waves

Electromagnetic waves are produced by charges moving with uniform velocity

Electromagnetic waves carry both energy and momentum as they propagate through space.

TS EAMCET 2023 (Online) 12th May Morning Shift

MCQ (Single Correct Answer)

-0

If a plane electromagnetic wave has electric field oscillations of frequency 3 GHz , then the wavelength of the wave is (speed of light in vacuum $=3 \times 10^8 \mathrm{~ms}^{-1}$ )

0.1 m

0.2 m

100 m

0.003 m

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