Atypical radio wave has a period of 1.4 microseconds. express this period in seconds. answer in units of s.

In second time period will be

Explanation:

We have given the time period  of wave

We have to change this time period in unit of second

We know that 1 micro sec

We have to change 1.4 micro second

To change the time period from micro second to second we have to multiply with

So

it becomes positively charged by charging it

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.