Q 322 An electromagnetic wave passing through a medium is represented as E=E0 sinπt-π2ax The electric field - Physics - Alternating Current

Question

Q 322 An electromagnetic wave passing through a medium is
represented as E = E 0 sin πt - π 2 a x
The electric field energy contained in a small volume, through
which the wave passes, oscillates with frequency
(1) 1 Hz
(2) 2 Hz
(3) π Hz
(4) 1 2 Hz

Shobhit Mittal · Accepted Answer

Dear Student,frequency of the wave2πf=πf=0
5 Hzthe frequency of the oscillation of energy is double of this 
so the field energy oscillate with frequency 0
5*2=1 HzRegards

Q 322 . An electromagnetic wave passing through a medium is represented as E = E 0 sin πt - π 2 a x . The electric field energy contained in a small volume, through which the wave passes, oscillates with frequency (1) 1 Hz (2) 2 Hz (3) π Hz (4) 1 2 Hz

Q 322 . An electromagnetic wave passing through a medium is represented as $E =$ $E_{0}$ sin $(πt - \frac{π}{2 a} x)$ .
The electric field energy contained in a small volume, through which the wave passes, oscillates with frequency
(1) 1 Hz
(2) 2 Hz
(3) $π$ Hz
(4) $\frac{1}{2}$ Hz