Question

A typical radar is located at 4 meter distance from an object. If radar transmits signal from that position then, signal strength S will be __________

(a) proportional to (1/4^4)

(b) proportional to (1/4^6)

(c) proportional to 4

(d) proportional to 1/4

I have been asked this question during an interview.

I need to ask this question from Configuration Layout Considerations in portion Configuration Layout Considerations of Aircraft Design

Answer 1

The correct choice is (a) proportional to (1/4^4)

For explanation: Given, Distance d =4m.

Since, no other parameters have mentioned we will directly use the relation between strength and the distance to find required relation.

Typically, radar strength is proportional to (1/distance^4) = (1/4^4).