Pluto is 4 billion miles from the sun. Light from the sun travels at 186000 miles per second. How many hours does it takes for light to reach from the sun to Pluto ?
Given that,
distance b/w sun and pluto, d = 4 * 10^9 miles
speed of light , v = 186000 miles
time t = d / v
t = 4*10^9 / 186000
t = 21505.37 s
t = 21505.37 / 3600 = 5.97 hr
Hence, light takes 5.97 hours to reach from the sun to Pluto.
Pluto is 4 billion miles from the sun. Light from the sun travels at 186000 miles...
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