Question

If 1000 J Solar energy falls on the leaves of a plant, then how much energy will it receive ?

Answer 1

Amount of captured solar energy depends critically on orientation of collector with respect to the angle of the Sun.
Under optimum conditions, one can achieve fluxes as high as 2000 Watts per sq. meter
In the Winter, for a location at 40 degrees latitude, the sun is lower in the sky and the average flux received is about 300 Watts per sq. meter
A typical household Winter energy use is around 2000-3000 KWHs per month or roughly 70-100 KWH per day.
Assume our roof top area is 100 square meters (about 1100 square feet).
In the winter on a sunny day at this latitude (40o) the roof will receive about 6 hours of illumination.
So energy generated over this 6 hour period is:
300 watts per square meter x 100 square meters x 6 hours
= 180 KWH (per day) more than you need.

Answer 2

the leaves will receive 1% frm the sun....I.e it'll receive 10j from the providing solar energy. .....

remember-: only in case of sun the receiver will receive 1% otherwise it will follow 10% law


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