Communication Systems: JEE Main 2012 Physics question

JEE Main 2012 · Annual, Paper 1 · Q6302

JEE Main 2012Annual, Paper 1PhysicsMediumCommunication Systems79× since 2003

A radar has a power of

1kW

and is operating at a frequency of

10

GHz.

It is located on a mountain top of height

500

m.

The maximum distance upto which it can detect object located on the surface of the earth (Radius of earth

= 6.4 \times {10^6}m

) is :

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JEE Main 2012 Communication Systems Question with Solution (Annual Paper 1, Q6302) | JEE Arc