Home
Class 12
PHYSICS
The pressure exerted by an electromagnet...

The pressure exerted by an electromagnetic wave of intensity `I (Wm^(-2))` on a non-reflecting surface is ( c is the velocity of light)

A

Ic

B

` Ic ^(2)`

C

`I//c`

D

`I//c^(2)I`

Text Solution

Verified by Experts

The correct Answer is:
C
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTRO MAGNETIC WAVES

    MOTION|Exercise EXERCISE - 3 (SECTION - B)|8 Videos
  • ELECTRO MAGNETIC WAVES

    MOTION|Exercise EXERCISE - 2|36 Videos
  • ELECTRO MAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4| Section B (Prevous Years Problems )|29 Videos
  • ELECTROMAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4 (LEVEL-II)|13 Videos

Similar Questions

Explore conceptually related problems

Show that the radiation pressure exerted by an EM wave of intensity I on a surface kept in vacuum is I//c .

The force exerted by electromagnetic wave on unit area of the surface is called.........

Knowledge Check

  • The pressure exerted by an electromagnetic wave of intensity l ("watt/m"^(2)) on a nonreflecting surface is [c is the velocity of light]

    A
    lc
    B
    `lc^(2)`
    C
    `l//c`
    D
    `l//c^(2)`
  • The pressure exerted by electromagnetic wave of intensity I on a non - reflecting surface is ( where c= velocity of light ):

    A
    IC
    B
    `Ic^2`
    C
    `(I )/(c )`
    D
    `(I )/(c^2)`
  • Pressure exeted by an electromagneti wave os intesnity .I. on a non - reflecting surface is given by [Here c= speed of light]

    A
    `Ic`
    B
    `(I)/(c )`
    C
    `Ic^(2)`
    D
    `(I)/(c^(2))`
  • Similar Questions

    Explore conceptually related problems

    {:("Column I","","Column II"),((a)" " "All electromagnetic waves including visible light", (p), "microwaves"),((b)" ""Electromagnetic waves whose frequency is in the range 500 kHz to 1000 MHz ",(q),"have the same speed c in vacuum"),((c)" " "The force exerted by an electromagnetic wave on unit area of surface", (r)," radio waves "),((d)" ""The shortest wavelength radio waves",(s), "radiation pressure") :}

    In a certain medium the relationship between the group and phase velocities of an electromagnetic wave has the form uv = c^(2) , where c is the velocity of light in vaccume. Find the dependence of permittivity of that medium on wave frequency, epsilon(omega) .

    The electric field in an electromagnetic wave is given by E = (50 NC^(-1)) sin omega (t-x/c) . Find the intensity of the wave wm^(-2) .

    The intensity of a plane electromagnetic wave is 5W / m^(2) . It is incident on a perfectly reflecting surface. Find the radiation pressure:

    The amplitude of electric field in a parallel light beam of intensity 4Wm^(-2) is