Question

a radar signal; is reflected by an aeroplane and received 2*10-5after it was sent . if the speed of these wave is 3*108 m/s, how far is the aeroplanea

Answer 1

By the given data
    time = t = 2*10'-5 s
    speed = v = 3*10'8 m/s

According to the distance formula
             S=v t

Putting the values
    S= (3*10'8)(2*10'-5)
       = 6*10'3

So, the aeroplane is 6*10'3 m away.

Answer 2

Answer:

The Aeroplane is far from 6000m

Explanation:

Given that,

Time after which the signal was received is $2*10^{-5} s$

Speed of the wave is $3 * 10^{8} m/s$

To find,

The distance between radar and the aeroplane.

Calculation,

Let distance is d. The formula of speed is distance divided by time taken. So,

$v=\frac{d}{t}$

Then,

$d=v*t$

$d = 3* 10^{8} * 2* 10^{-5}$

$d = 6000m$

So, the aeroplane is at a distance of 6000 m from the radar.

• The formula speed distance time is used to explain the relationship between speed, distance, and time. That is, speed = time + distance. To put it another way, distance divided by speed equals time. You can figure out the third input if you know the first two.

Radar signal

A radar system has a transmitter that sends out radio waves known as radar signals in specific directions. When these signals make contact with an item, they are often reflected or scattered in various directions, however some are absorbed and penetrate the target.

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