Home
Class 12
PHYSICS
The magnetic field in a plane electromag...

The magnetic field in a plane electromagnetic wave is given by `B_(y)=(2xx10^(-7)) T sin (0.5xx10^(3)x+1.5xx10^(11)t)`.
What is the wavelength and frequency of the wave?

Text Solution

Verified by Experts

Comparing the given equation with
`B_(y) = B_(o) sin [2 pi ((x)/(lamda)+(t)/(T))]`
We get, `lamda =(2 pi)/(0.5xx10^(3)) m=1.26 cm, and (1)/(T) =v= (1.5xx10^(11))//2pi =23.9 GHz`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES

    NCERT GUJARATI|Exercise EXERCISES|10 Videos

  • ELECTROMAGNETIC WAVES

    NCERT GUJARATI|Exercise ADDITIONAL EXERCISES|5 Videos

  • ELECTROMAGNETIC INDUCTION

    NCERT GUJARATI|Exercise ADDITIONAL EXERCISES|7 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    NCERT GUJARATI|Exercise EXERCISES|35 Videos

Similar Questions

Explore conceptually related problems

The magnetic field in a plane electromagnetic wave is given by B_(y)=(2xx10^(-7)) T sin (0.5xx10^(3)x+1.5xx10^(11)t) . Write an expression for the electric field.

The electric field in a plane electromagnetic wave propagating along + Y axis is given by E_(y)=30 sin[2xx10^(11)t+300 pi x]hat(j)Vm^(-1) . (a) What is the wavelength and frequency of the wave ? (b) Write an expression for the magnetic field.

The magnetic field of a beam emerging from a filter facing a floodlight is given by B=12xx10^(-8)sin (1.20xx10^(7)z-3.60xx10^(15)t) T. What is the average intensity of the beam ?

For a plane electromagnetic wave propagating along + X axis, electric field is E_(y)=48 sin{-10^(3)x + 10^(11)t} V/m. Find wavelength and frequency of above wave. Also write equation of corresponding magnetic field. (All values are in SI units).

Suppose that the electric field part of an electromagnetic wave in vacuum is vec(E )={(3.1 N//C)cos [(1.8 rad//m)y+(5.4xx10^(6)rad//s)]}hat(i) What is the wavelength lambda ?

For a plane electromagnetic wave propagating along + Y axis, magnetic field is, B_(x)=8xx10^(-6)sin{(3xx10^(8))t-(0.4xx10^(3))y}hat(i)T . Find periodic time, wave no and write equation of corresponding electric field.

Component of electric field of electromagnetic wave is as following : E_(x)=10^(2)sin(pi(9xx10^(14)t-3xx10^(6)z)) , E_(y)=0, E_(z)=0 , then intensity of wave is ….

Suppose that the electric field part of an electromagnetic wave in vacuum is vec(E )={(3.1 N//C)cos [(1.8 rad//m)y+(5.4xx10^(6)rad//s)]}hat(i) What is the amplitude of the magnetic field part of the wave ?