Home
Class 12
PHYSICS
The Magnetic field in plane electromagne...

The Magnetic field in plane electromagnetic wave is given by `B_(y)=4xx10^(-6)sin (0.2xx10^(4)x+0.6xx10^(12)t)`T, then find
(a)n Frequency
(b) Wavelength
(c) Speed of the wave
(d) Expression for electric field part of electromagnetic wave

Text Solution

Verified by Experts

(a) `f=(0.6xx10^(12))/(2pi)=9.55xx10^(0)Hz`
(b) `lambda=(2pi)/(k)=(2pi)/(0.2xx10^(4))=3.14xx10^(-3)m`
(c) `c=(omega)/(k)=(0.6xx10^(12))/(0.2xx10^(4))=3xx10^(8)(m)/(s)`
(d) `vecE=3xx10^(8)xx4xx10^(-8)sin(0.2xx10^(4)xx0.6xx10^(12)t)hat k (N)/(C)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES

    AAKASH INSTITUTE|Exercise EXERCISE|9 Videos

  • ELECTROMAGNETIC WAVES

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - A Objective Type Questions|24 Videos

  • ELECTROMAGNETIC WAVES

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION-D) (ASSERTION-REASON TYPE QUESTIONS)|8 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE|Exercise ASSIGNMENT(SECTION -D) Assertion-Reason type Question)|15 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - D|13 Videos

Similar Questions

Explore conceptually related problems

The magnetic field in plane electromagnetic wave is given by B_(y) = 4 xx 10^(-6) sin (0.2 xx 10^(4) y + 0.6 xx 10^(12) t ) T, then find (a) Frequency (b) Wavelength (c) Speed of the wave (d) Expression for electric field part of the electromagnetic wave.

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

Knowledge Check

  • The magnetic field in plane electromagnetic wave is given by B_(y) = 4 xx 10^(-6) sin (0.2 xx 10^(4) x + 0.6 xx 10^(12)t) T, then find i) Wavelength (ii) Speed of the wave

    A
    31.4 `xx 10^(-3) m, 0.3 xx 10^(8)` m/s
    B
    `3.14 xx 10^(-3) m, 3 xx 10^(8)` m/s
    C
    `3.14 xx 10^(-6) m, 3 xx 10^(6) `m/s
    D
    `3.14 xx 10^(-2) m, 3 xx 10^(2) `m/s

  • The magnetic field in plane electromagnetic wave is given by =2xx10^(-7)sin (0.5xx10^(3)xx10^(11)t) This electro magnetic wave is

    A
    Visible light
    B
    Infared
    C
    Microwave
    D
    Radiowaves

  • The magnetic field in a plane electromagnetic wave is given by B_(y)=2xx10^(-7)sin(0.5xx10^(3)x+1.5xx10^(11)t) . This electromagnetic wave is

    A
    a visible light.
    B
    an infrared wave.
    C
    a microwave.
    D
    a radio wave.

    • Similar Questions

    Explore conceptually related problems

    The oscilating magnetic field in a plane electromagnetic wave is given as B_(Y)=8xx10^(-6)sin (5000 pi x xx-3xx10^(11)pi t)T . (a) Frequency (b) Wavelength (c) Speed of the wave (d) Speed of the wave Electric field amplitude (e) Write down expression for oscillating electric field.

    The magnetic field in a plane electromagnetic wave is given by: By=12 xx 10^(-8) sin (1.20 xx 10^7z+3.60 xx 10^(15)t)T. Calculate the Speed. of the wave

    The oscillating magnetic field in a plane electromagnetic wave is given as B_(gamma) = 8 xx 10^(-6) sin (5000 pi x - 3 xx 10^(11) pit) T. Calculate (a) Frequency (b) Wavelength (c ) Speed of the wave (d) Electric field amplitude (e) Write down expression for oscillating electric field.

    Magnetic field of a plane electromagnetic wave is given by B=2xx10^-7sin[0.5xx10^3x+1.5xx10^11t] The time period will be

    The magnetic field in a plane electromagnetic wave is given by B_(y) = 2 xx 10^(-7) sin (0.5 xx 10^(3)x + 1.5 xx 10^(11) t) . This electromagnetic wave is

    Home
    Profile