Home
Class 12
PHYSICS
If the intensity of the incident radio w...

If the intensity of the incident radio wave of `1 "watt"//m^2` is reflected by the surface, find the pressure exerted on the surface.

Text Solution

Verified by Experts

Pressure exerted by reflected wave on the
surface is,
`P=(2I)/c=(2xx1)/(3xx10^8)=6.67xx10^-9N//m^2`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES

    PRADEEP|Exercise Solved Example|4 Videos
  • ELECTROMAGNETIC WAVES

    PRADEEP|Exercise (I) Conceptual problems|1 Videos
  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    PRADEEP|Exercise Multiple Choice Questions|1 Videos
  • ELECTRONIC DEVICES

    PRADEEP|Exercise Fill in the Blanks|1 Videos

Similar Questions

Explore conceptually related problems

If the intensity of the incident radiowave is 1 "watt"//m^2 is absorbed by the surface, find the pressure exerted on the surface.

If the intensity of incident radio wave is 3 Watt/ m^2 ,what is the pressure exerted by the absorbed wave?

A radio wave of intensity / isn reflcted by a surface. Find intersity (l), if pressure exerted on the surface is 2xx10^(-8)N//m^(2) .

Light with an energy flux of 18W//cm^(2) falls on a non-reflecting surface at normal incidence. The pressure exerted on the surface is

" of intensity "1.5kW/m^(2)" is incident normally on a perfectly absorbing surface.The pressure exerted by the light on the surface is "n times10^(-6)Pa" .Value of "n" is "

If a parallel beam of light having intensity I is incident normally on a perfectly reflecting surface, the force exerted on the surface, equal F. When the surface is held at an angle theta , the force is

A "50 W m"^(-2) energy density of sunlight is incident normally on the surface of a solar panel. Some part of incident energy (25%) is reflected from the surface and the rest is absorbed. The force exerted on 1m^(2) surface area will be close to (c=3xx10^(8)ms^(-1))

A parallel beam of the light is incident normally on a plane surface absorbing 40% of the light and reflecting the rest. If the incident beam carries 10 watt power, find the force exerted by it on the surface.

An e.m. wave with poynting vector 6watt//m^2 is absorbed by a surface of area 12m^2 . Find the force on the surface.