What is the total distance travelled by a pulse of frequency 3μsec from the antenna to the target and back? (Assume c = 3 x 108 m/s) 600m 450m 300m 900m
Question
What is the total distance travelled by a pulse of frequency 3μsec from the antenna to the target and back? (Assume c = 3 x 10^8 m/s)
- 600m
- 450m
- 300m
- 900m
Solution
The total distance travelled by a pulse can be calculated using the formula:
Distance = Speed x Time
Given: Speed of light (c) = 3 x 10^8 m/s Time (t) = 3 μsec = 3 x 10^-6 sec
We need to calculate the total distance for a round trip (to the target and back), so the time will be divided by 2:
t' = t / 2 = 3 x 10^-6 sec / 2 = 1.5 x 10^-6 sec
Now, substitute the values into the formula:
Distance = c x t' = 3 x 10^8 m/s x 1.5 x 10^-6 sec = 450 m
So, the total distance travelled by the pulse is 450 meters.
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