Which one of the following phenomena verifies the fact that light travels much faster than sound?

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Q: 104 (CDS-II/2020)

Which one of the following phenomena verifies the fact that light travels much faster than sound?

question_subject: 

Science

question_exam: 

CDS-II

stats: 

0,33,11,5,3,33,3

Option 1: Twinkling of stars in the night sky does not prove that light travels faster than sound. The twinkling of stars is caused by the Earth`s atmosphere bending and scattering the starlight as it passes through, creating the flickering effect.

Option 2: The lighting of a matchstick is also unrelated to the speed of light compared to sound. The ignition of a matchstick involves a chemical reaction that produces a small flame and does not involve the propagation of light or sound over significant distances.

Option 3: Thunderstorm is the correct answer. Thunder and lightning occur simultaneously, but we see the lightning before we hear the thunder. This phenomenon is due to the fact that light travels much faster than sound. The speed of light is about 186,282 miles per second (299,792 kilometers per second), whereas the speed of sound is approximately 1,125 feet per second (343 meters per second) in air. Therefore, we see the flash of lightning instantly when it occurs, but the sound of thunder takes longer to reach our ears.

Option 4: A mirage, although an interesting optical illusion, does not provide evidence for the speed difference between light and sound. Mirages occur when light refracts (bends) as it passes