Electric field in a plane electromagnetic wave is given by E =50 sin (500 x -10 × 1010 t ) V / m The velocity of electromagnetic wave in this medium is: (Given C = speed of light in vacuum)

Question

Electric field in a plane electromagnetic wave is given by E =50 sin (500 x -10 × 1010 t ) V / m The velocity of electromagnetic wave in this medium is: (Given C = speed of light in vacuum) (A) (3/2) C (B) C (C) (2/3) C (D) ( C /2)

Tardigrade Admin · Accepted Answer

V =(ω/ K )=(10 × 1010/500) =2 × 108 V =(2 C /3)

Q. Electric field in a plane electromagnetic wave is given by $E = 50 sin (500 x - 10 \times 1 0^{10} t) V / m$ The velocity of electromagnetic wave in this medium is :
(Given $C =$ speed of light in vacuum)

$\frac{3}{2} C$

$C$

$\frac{2}{3} C$

$\frac{C}{2}$

$V = \frac{ω}{K} = \frac{10 \times 1 0 ^{10}}{500}$
$= 2 \times 1 0^{8}$
$V = \frac{2 C}{3}$

Q. Electric field in a plane electromagnetic wave is given by E=50sin(500x−10×1010t)V/m The velocity of electromagnetic wave in this medium is : (Given C= speed of light in vacuum)

23​C

C

32​C

2C​

V=Kω​=50010×1010​ =2×108 V=32C​

Q. Electric field in a plane electromagnetic wave is given by $E = 50 sin (500 x - 10 \times 1 0^{10} t) V / m$ The velocity of electromagnetic wave in this medium is :
(Given $C =$ speed of light in vacuum)

$\frac{3}{2} C$

$C$

$\frac{2}{3} C$

$\frac{C}{2}$

$V = \frac{ω}{K} = \frac{10 \times 1 0 ^{10}}{500}$
$= 2 \times 1 0^{8}$
$V = \frac{2 C}{3}$