a digital cell phone emits 0.60 w of 1.9 ghz radio waves. what are the amplitudes of the electric and magnetic fields at a distance of 10 cm

d.7.5cm is your answer

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.