If a target is 5 miles away, how long does...

Question 1 / 20Drm7APs9qXh7PRqr2OfT

Question 1 of 20Drm7APs9qXh7PRqr2OfT

If a target is 5 miles away, how long does it take for the RADAR echo to be received back at the antenna?

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Question 1 of 20

Drm7APs9qXh7PRqr2OfT

If a target is 5 miles away, how long does it take for the RADAR echo to be received back at the antenna?

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🔍 Key Concepts

• Speed of radio waves / radar pulses is the same as the speed of light (approximately 162,000 nautical miles per second) • Two‑way travel of the radar pulse (out to the target AND back) • Converting seconds to microseconds (1 microsecond = 1×10^-6 seconds)

💭 Think About

• First, determine how long it takes a radar pulse to travel 5 nautical miles ONE WAY using speed = distance / time. • Then remember the pulse must travel to the target AND back, so double the one‑way distance before calculating the total time. • After finding the time in seconds, convert it carefully into microseconds and compare with the choices.

✅ Before You Answer

• Be sure you used 10 nautical miles as the total path (out and back), not just 5. • Verify you are using the correct approximate speed of radar energy in nautical miles per second before calculating. • Double‑check your seconds to microseconds conversion and make sure the magnitude (tens vs hundreds of microseconds) makes sense.

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Question 1 of 20

If a target is 5 miles away, how long does it take for the RADAR echo to be received back at the antenna?

51.4 microseconds.

123 microseconds.

30.75 microseconds.

61 . 7 microseconds.

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Question 1 / 20Drm7APs9qXh7PRqr2OfT

Question 1 of 20Drm7APs9qXh7PRqr2OfT

If a target is 5 miles away, how long does it take for the RADAR echo to be received back at the antenna?

Back

Question 1 of 20

Drm7APs9qXh7PRqr2OfT

If a target is 5 miles away, how long does it take for the RADAR echo to be received back at the antenna?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed