GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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300 000 000 m/s
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300 m/s
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300 000 m/s
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3 000 000 m/s
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Detailed explanation-1: -(b) Speed of light in vacuum is 300, 000, 000m/s. Q. The speed of light in vacuum is 3×108 m/s. Sunlight takes about 8 minutes to reach the Earth.
Detailed explanation-2: -Light from a stationary source travels at 300, 000 km/sec (186, 000 miles/sec).
Detailed explanation-3: -Nothing can travel faster than 300, 000 kilometers per second (186, 000 miles per second). Only massless particles, including photons, which make up light, can travel at that speed. It’s impossible to accelerate any material object up to the speed of light because it would take an infinite amount of energy to do so.
Detailed explanation-4: -The most energetic particles ever made on Earth, which are protons at the Large Hadron Collider, can travel incredibly close to the speed of light in a vacuum: 299, 792, 455 meters-per-second, or 99.999999% the speed of light.