Electromagnetic...

The propagation of electromagnetic waves is along the direction of:

Visible spectrum lies between:

Which of the following remains same for all electromagnetic waves?

The concept of displacement current was proposed by:

Which of the following electromagnetic wave is used for thermal imaging?

Match the type of wave with its wavelength:

Which of the following effect is not related to the electromagnetic waves?

The phase difference between the electric field and the magnetic field in the electromagnetic wave is:

Which among the following is the incorrect statement regarding displacement current?

Spectrum of X-rays is:

What is the speed of electromagnetic waves in terms of dielectric constant and vacuum permeability?

Which among the following order of decreasing wavelengths of electromagnetic waves are correct? 

I. Radio waves

II. Infrared rays 

III. Visible light 

IV. X-rays

Choose the answer from the following code: 

The Electromagnetic Waves are:

When heat radiation falls on a surface, then it:

Radio waves are readily diffracted around building where as light waves are negligibly diffracted around buildings. This is because radio waves:

Calculate the displacement current between square plates in which electric field changes at the rate of \(5 \times 10^{12} {Vm}^{-1} {~s}^{-1}\). Side of plates is \(2.0 {~cm}\).

Which of the following electromagnetic waves has the longest wavelength?

Which one of the following is the correct expression for displacement current \(\left(i_{d}\right)\)?

The flux of electric field through closed conducting plate changes with time as \(\phi_{E}=\left(50 t^{2}+10 t+2\right) V m\) then, the value of displacement current into medium of \(\epsilon_{0}\) at \(t=2 s e c\) is:

Electromagnetic waves are generated by-

Which of the following statement is false for the properties of electromagnetic waves?

Which one among the following waves are called waves of heat energy?

Which type of waves are used to communicate with the artificial satellite:

In case of steady electric field in between region of the parallel plate capacitor. The magnitude of displacement current is:

Infrared radiation was discovered in 1800 by ______

What is the value of instantaneous displacement current in the free space between parallel plate capacitor of capacitance \(1 \mu F\) and the rate of changing potential difference maintain between plates is \(10^{6} {~V} / {s} ?\)

The flux of electric field through closed conducting loop changes with time as \(\phi_{E}=\left(10 t^{2}-20 t+5\right) V m\) then, the value of displacement current into medium of \(\epsilon_{0}\) at time \(t=1 {sec}\) is:

Among the following which electromagnetic waves have the wavelength range of 700 nm to 400 nm?

Arrange the given rays in increasing order of frequency?

What type of energy radiates from hot objects and can be seen by cameras?