If the intensity of the incident radio wave is 3 watt m−2 is reflected by the surface, the pressure exerted on the surface is  _____×10−8N/m2

Pressure exerted by reflected wave on the surface is  P=2ICIntensity of incident radio wave is I=3 watt m−2 and Velocity of light  C=3×108ms−1Pressure  P=2×33×108=2×10−8N/m2