Question

light travels 3000000 scs if earth is 150 million km away from sun how many minutes it will take the light to come from sun to earth

Answer 1

• Speed of light=3×10^8m/s=3×10^5km/s
• Distance=150million km=150×10^6km

Now

`\\ \rm\longmapsto Speed=(Distance)/(Time)`

`\\ \rm\longmapsto Time=(Distance)/(Speed)`

`\\ \rm\longmapsto Time=(150* 10^6)/(3* 10^5)`

`\\ \rm\longmapsto Time=50* 10^1`

`\\ \rm\longmapsto Time=500s`

`\\ \rm\longmapsto Time=8.33min`

• Can be written as 8min 20s.