একটি সমতল ইলেক্ট্রোম্যাগনেটিক তরঙ্গের বৈদ্যুতিক ক্ষেত্রটি vec(E)=E_0haticos(kz)cos(omegat) দ্বারা দেওয়া হয় ...

if vecE=E_(0)cos(kz)cos(omegat)hati then vec(B) for electromagentic wave is

The magnetic field of a plane electromagnetic wave is given by: vec(B)=B_(0)hat(i)-[cos(kz- omegat)]+B_(1)hat(j)cos(kz+omegat) where B_(0)=3xx10^(-5)T and B_(1)=2xx10^(-6)T . The rms value of the force experienced by a stationary charge Q=10^(-4)C at z=0 is close to:

The electric field component of a monochromatic radiation is given by vecE=2E_(0)hati cos kz cos omega t Its magnetic field vecB is then given by :

An e.m. wave trevels in vacuum along z direction: vecE=(E_1hati+E_2hatj)cos (kz-omegat) . Choose the correct option from the following :

A linearly polarised electromagnetic wave given as E=E_(0)haticos(kz-omegat) is incident normally on a perfectly reflecting wall z=a . Assuming that the material of the optically inactive, the reflected wave will be give as

Electric field in space is given by vec(E(t)) = E_0 (i+j)/sqrt2 cos(omegat+Kz) . A positively charged particle at (0, 0, pi/K) is given velocity v_0 hatk at t = 0. Direction of force acting on particle is

The electric field of an electromagnetic wave in free space is represented as vec E=E_(0)cos(omega t-kz) hat i . The corresponding magnetic induction vector will be:

The electric field of a plane electromagnetic wave is given by vecE=E_(0)(hatx+haty)sin(kz-omegat) Its magnetic field will be given by :