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1.
The electric field of an electromagnetic wave travelling through vacuum is given by the equation
. The quantity that is independent of wavelength is
. The quantity that is independent of wavelength is
2.
Velocity of Electromagnetic Waves in a medium depends upon
3.
A parallel plate capacitor is charged to 
. Due to a radioactive source, the plate loss charge at the rate of 
The magnitude of displacement current is
. Due to a radioactive source, the plate loss charge at the rate of The magnitude of displacement current is
4.
An electromagnetic wave, going through vacuum is described by 
Which of the following is independent of wavelength?
Which of the following is independent of wavelength?
5.
The rms value of the electric field of the light coming from the sun is 720 NC⻹. The average total energy density of the Electromagnetic Wave is
6.
The curve drawn between velocity and frequency of a photon in vacuum will be
7.
The ozone layer absorbs
8.
If 
is an electric field and 
is the magnetic induction then the energy flow per unit area per unit time in an electromagnetic field is given by
is an electric field and is the magnetic induction then the energy flow per unit area per unit time in an electromagnetic field is given by
9.
In an electromagnetic wave, the electric and magnetizing fields are 
and 
. The maximum energy flow is
and . The maximum energy flow is
10.
A. The wavelength of microwaves is greater than that of UV-rays.
B. The wavelength of IR rays is lesser than that of UV-rays.
C. The wavelength of microwaves is lesser than that of IR-rays.
D. Gamma rays have shortest wavelength in the Electromagnetic Spectrum.
Of the above statements
B. The wavelength of IR rays is lesser than that of UV-rays.
C. The wavelength of microwaves is lesser than that of IR-rays.
D. Gamma rays have shortest wavelength in the Electromagnetic Spectrum.
Of the above statements