List of top Physics Questions on Electromagnetic waves asked in TS EAMCET

The wavelength range of the electromagnetic waves suitable for radar systems used in aircraft navigation is

The amplitude of the magnetic field of a plane electromagnetic wave travelling along positive x-axis in vacuum is 6 mT. A particle of charge 5 \(\mu\)C is travelling with a velocity of \(6\times10^{5}ms^{-1}\) along the positive y-axis. If the magnetic field is oriented along positive z-axis, then the maximum force exerted on the particle due to electric field of the wave is

The rms value of electric field at a distance of 6 m from a 100 W bulb of efficiency 1.2% is:

The rms electric field of an EM wave is $30\sqrt{\pi}\ \text{V m}^{-1}$. Find its intensity in free space.}

The average force exerted on $5 cm^2$ area of a non-reflecting plate in 10 minutes when light with an energy flux of $20\,W\,cm^{-2}$ incidents normally on it is}

If a plane electromagnetic wave of intensity $9 \times 10^5\text{ W}\cdot\text{m}^{-2}$ incidents normally on a perfectly absorbing surface of area $2\text{ m}^2$ for a time of $180\text{ s}$, then the average force exerted by the electromagnetic wave on the surface during this time is:

The unification of electromagnetism and optics is based on the discovery that

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

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

For a plane electromagnetic wave travelling in free space along X-axis, the magnetic field at a particular point in space is $\vec{B} = 2.1 \times 10^{-8} \hat{k} \, T$. The magnitude of the electric field at this point is

Klystron valve is used to produce

The potential difference between the plates of a parallel plate capacitor is changing at the rate of $3.5\times10^6$ V/s. If the displacement current is 7 A, the capacitance of the capacitor is:

If the rate of change in electric flux between the plates of a capacitor is \(9\pi \times 10^3 \text{ Vms}^{-1}\), then the displacement current inside the capacitor is