Question

If the energy received by 5 m2 area in 10 minutes is 4200 kJ, calculate the value of solar constant.

Answer 1

Answer:

The value of solar constant $= 1.4 \frac{kW}{m^{2}}$

Explanation:

As per the question data,we have

$Area = 5 \ m^{2}$

Time = 10 minutes = 600 sec

(since 1 min = 60 sec)

Energy received = 4200 kJ

Now using the formula of solar constant,

$Solar \ constant= \frac{Energy}{Time \times Area}$

$Solar \ constant= \frac{4200}{600 \times 5}$

$Solar \ constant= \frac{4200}{3000}$

$Solar \ constant= 1.4 \frac{kJ}{s \ m^{2}}$

$Solar \ constant= 1.4 \frac{kW}{m^{2}}$

Hence, the value of solar constant $= 1.4 \frac{kW}{m^{2}}$

Answer 2

Answer:

1.4

Explanation:

4200÷600×5

1.4KJ/s/m2