EM Waves

Equation OF EM Wave||Ampere’s Law||Modified Form OF Ampere’s Law||Displacement Current||Conduction Current||Pointing Vector

Every EM wave has certain frequency. Name two parameters of an em wave that oscillate with this frequency.

Poynting vector vec P for an EM wave is

An EM wave is travelling in (hati+hatj)/sqrt(2) direction. Axis of polarization of EM wave is found to be hat k . Then equation of magnetic field will be

Statement A: If the antenna is vertical the vertically polarised EM wave is radiated Statement B: The vertically polarised EM wave has electrical variations in the vertical plane

Assertion: EM wave are transwers in nature. Reason: The electric and magnetic fields of an e.m. wave are perpendicular to each other also perpendicular to the direction of wave propagation.

If EM wave is travelling in y-direction then pairs of electric and magnetic field are

A : In an EM wave the magnitude of the electric field vector is more than the magnitude of the magnetic field vector. R : Energy of the EM wave is shared equally between the electric and magnetic fields.

Consider the following statements about e.m. wave and choose the correct ones S_1 : em wave having wavelengths 1000times smaller than light wave are called X-rays. S_2 : Ultraviolet wave are used in the treatment of swollen joints. S_3 : Alpha and gamma rays are e.m. wave S_4 : de-Broglie wave are not electromagentic in nature S_5 : EM wave exhibits polarization while sound wave do not.