Question

How many minutes does it take for light to go from the sun to the planet Uranus, a distance of 2.88x109 km? (The

velocity of light is constant in free space and is 3.00x108 m/s)

Answer 1

t = 160 minutes

Step-by-step explanation:

Given that,

Distance of Uranus from Sun is
`2.88* 10^9\ km`

We need to find the time taken by the light to go from sun to Uranus if the velocity of light is constant in free space and it is equal to c.

So,

`t=(d)/(v)\\\\t=(2.88* 10^9* 10^3\ m)/(3* 10^8)\\\\t=9600\ s`

Since, 1 minute = 60 seconds

t = 160 minutes

So, 160 minutes is taken by the light.