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.

An electromagnetic wave with pointing vector 5 W//m^(2) is absorbed by a surface of same area. If the force on the surface is 10^(-7) N, then area is

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

The total surface area of a cube is 216m^2 . Find its volume.

A cuboid has total surface area of 40m^2 and its lateral surface area is 26 m^2 . Find the area of its base.

The lateral surface area of a cube is 64 m^2 find its total surface area.