Electromagnetic Waves PYQs - Last 10 Years

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Practice 25 TS EAMCET Physics questions from Electromagnetic Waves. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

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Last 10 Years Electromagnetic Waves Questions

Showing 25 of 25 filtered questions.

1Electromagnetic Waves

If the electric field of a plane electromagnetic wave is $E_z=60 \sin \left(0.5 \times 10^3 x+1.5 \times 10^{11} t\right) \mathrm{Vm}^{-1}$, then the magnetic field of the wave is

2Electromagnetic Waves

The amplitude of the electric field associated with a light beam of intensity $\frac{15}{\pi} \mathrm{Wm}^{-2}$ is

3Electromagnetic Waves

The dielectric constant of a medium is 8 and its relative permeability is 200 . If an electromagnetic wave of frequency 100 MHz travels in this medium, then its wavelength is

4Electromagnetic Waves

If electromagnetic waves of power 600 W incident on a non-reflecting surface, then the total force acting on the surface is

5Electromagnetic Waves

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

6Electromagnetic Waves

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 ...

7Electromagnetic Waves

If the peak value of the magnetic field of an electromagnetic wave is $30 \times 10^{-9} \mathrm{~T}$, then the peak value of the electric field is

8Electromagnetic Waves

Electromagnetic radiation of intensity $0.6 \mathrm{Wm}^{-2}$ is falling on a black surface. The radiation pressure on the surface is

9Electromagnetic Waves

Match the electromagnetic radiations given in List-I with their uses given in List-II
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10Electromagnetic Waves

The speed of electromagnetic waves in a medium is $1.5 \times 10^8 \mathrm{~ms}^{-1}$. If relative permittivity of that medium is 2 , then its magnetic susceptibility is (speed of light in vacuum is $3 \times 10^8 \mathrm{~ms}^{-1}$ ).

11Electromagnetic Waves

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 $=3 \times 10^8 \mathrm{~ms}^{-1}$ )

12Electromagnetic Waves

The correct statement among the following is

13Electromagnetic Waves

On a particular day, the sun delivers an average power of $\left(\frac{6}{\pi} \times 10^3\right) \frac{\mathrm{W}}{\mathrm{m}^2}$ to the top of earth's atmosphere. Find the amplitude of magnetic field for the electromagnetic waves above at...

14Electromagnetic Waves

In a plane EM wave, the electric field oscillates sinusoidally at a frequency of 30 MHz and amplitude $150 \mathrm{~V} / \mathrm{m}$, Identify the correct expression of $\mathbf{B}$ assuming the wave is propagating along $X$-axis and is osc...

15Electromagnetic Waves

About $20 \%$ of the power of a 100 W bulb is converted to visible radiation. Assuming that the radiation is emitted isotropically and neglecting reflection, the average intensity of visible radiation at a distance of 5 m is $\frac{\alpha}{...

16Electromagnetic Waves

A laser beam has intensity $2.1 \times 10^{15} \mathrm{~W} / \mathrm{m}^2$. The amplitude of magnetic field in the beam in approximately is

17Electromagnetic Waves

An electromagnetic wave is propagating in vacuum along $-\hat{\mathbf{j}}$ direction. The magnetic field of the wave is given by $\mathbf{B}=\left(2 \times 10^{-8}\right) \cos \left[\pi \times 10^{15}\left(t+\frac{y}{c}\right)\right] \hat{\...

18Electromagnetic Waves

An electromagnetic wave has its electric and magnetic fields given by
\(\mathbf{E}(t)=\mathbf{E}_m \sin (k x-\omega t) ; \quad \mathbf{B}(t)=\mathbf{B}_m \sin (k x-\omega t)\)
If the direction of $\mathbf{E}_m$ and $\mathbf{B}_m$ are in t...

19Electromagnetic Waves

A beam of white light is incident normally on a plane surface absorbing 70\% of the light and reflecting the rest. If the incident beam carries 10 W of power, the force exerted by it on the surface is

20Electromagnetic Waves

Choose the correct statement.

21Electromagnetic Waves

The radiation energy emitted per second by a point source is 100 W . If the efficiency of the source is $4 \%$, then the rms value of the electric field at distance of 2 m is [use $\frac{1}{4 \pi \varepsilon_0}=9 \times 10^9$ in SI unit]

22Electromagnetic Waves

At an instant, a plane electromagnetic wave has its magnetic field in the direction of the vector $\hat{\mathbf{i}}-\hat{\mathbf{j}}$ and its electric field is in the direction of $\hat{\mathbf{i}}+\hat{\mathbf{j}}$. The wave is travelling ...

23Electromagnetic Waves

The typical wavelength of X-ray is

24Electromagnetic Waves

What is the amplitude of the electric field in a parallel beam of light intensity $\left(\frac{15}{\pi}\right) \frac{\mathrm{W}}{\mathrm{m}^2}$ ?
$$ \left[\text { Assume }, \frac{1}{4 \pi \varepsilon_0}=9 \times 10^9 \frac{\mathrm{Nm}^2}{\m...

25Electromagnetic Waves

A parallel-plate capacitor with circular plates is being discharged. The radius of the circular plate is 10 cm . A circular loop of radius 20 cm is concentric with the capacitor and located halfway between the plates. If the electric field ...