List of top Physics Questions on Electromagnetic waves asked in KCET

A series LCR circuit containing an AC source of 100V has an inductor and a capacitor of reactances 24\(\Omega\) and 16\(\Omega\) respectively. If a resistance of 6\(\Omega\) is connected in series, then the potential difference across the series combination of inductor and capacitor will be

If AB is incident plane wave front, then refracted wave front is (n\(_1\) → n\(_2\)) 

Electromagnetic waves are incident normally on a perfectly reflecting surface having surface area \( A \). If \( I \) is the intensity of the incident electromagnetic radiation and \( c \) is the speed of light in vacuum, the force exerted by the electromagnetic wave on the reflecting surface is
The ratio of the magnitudes of electric field to the magnetic field of an electromagnetic wave is of the order of
The source of electromagnetic wave can be a charge.
Suppose that the electric field amplitude of electromagnetic wave is \(E_o=120\ NC^{-1}\) and its frequency if f = 50 MHz. Then which of the following value is incorrectly computed ?
Suppose that the electric field amplitude of electromagnetic wave is $E _{0}=120\, NC ^{-1}$ and its frequency if $f =50 \,MHz$. Then which of the following value incorrectly computed ?
The source of electromagnetic wave can be a charge.
A light beam of intensity $20\, W/cm^2$ is incident normally on a perfectly reflecting surface of sides $25 \,cm \times 15 \,cm$. The momentum imparted to the surface by the light per second is
Electromagnetic radiation used to sterilise milk is
X-rays, gamma rays and microwaves travelling in vacuum have
Electromagnetic waves are incident normally on a perfectly reflecting surface having surface area A. If I is the intensity of the incident electromagnetic radiation and c is the speed of light in vacuum, the force exerted by the electromagnetic wave on the reflecting surface is