Energy from the Sun arrives at the top of the Earth's atmosphere with an intensity of 1.36 kW/m 2 . How long does it take for 3.55 × 10 9 J to arrive on an area of 4.25 m 2 ?

The time taken by to arrive on an area of is .

Explanation:

Given the intensity of the energy is

And the arriving energy is

Also, the area in which energy is being arriving is

Now, we will use relation between energy , intensity of energy , area and time .

Where energy is in Joule, intensity is in , area is in and time is in seconds.

The equation is

So, the time taken by to arrive on an area of is .