Q. At which of the following speeds radio waves travel? (UPSC Prelims 1985)
Answer: 3 x 108 m/sec
Notes: Radio waves travel very quickly through space. Radio waves are a kind of electromagnetic radiation, and thus they move at the speed of light. The speed of light is a little less than 300,000 km per second. At that speed, a beam of light could go around the Earth at the equator more than 7 times in a second.
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📌 Question Number: 36 in Physics GK 15 - Mechanical & Electromagnetic Waves in the above course in App.

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