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For a radio signal to travel 150 km from...

 For a radio signal to travel 150 km from the transmitter to a receiving antenna, it takes

A

`5xx10^(-4)` second

B

`4.5xx10^(-3)` second

C

`5xx10^(-8)` second

D

`4.5xx10^(-6)` second

Text Solution

Verified by Experts

The correct Answer is:
a
`t=(s)/(v)=(150xx10^(3)m)/(3xx10^(8)ms^(-1))=5xx10^(-4)s`
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