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The velocity of light is 3×10^8 m/s how long does it take to reach the ear

The velocity of light is 3×10^8 m/s how long does it take to reach the earth from the sun which is 1.5× 10^11m away ??

1 Answer


ime = distance / velocity.

distance = 1.5x10^11m
velocity = 3.0x10^8 m/s

Substituting into the equation:

time = (1.5x10^11m)/( 3.0x10^8 m/s) = 500 seconds

Therefore, light travelling at 3.0x10^8 meters per second takes 0.5*10^3 s (8 minutes, 20 seconds) to reach the Earth, which is 1.5x10^11 meters away from the sun.

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