Define a solar panel.

50 W//m^(2) energy density of sunlight is normally incident on the surface of a solar panel. Some part of incident energy (25%) is reflected from the surface and the rest is absorbed. The force exerted on 1m^(2) surface area will be close to (c=3xx10^(8) m//s) :

A "50 W m"^(-2) energy density of sunlight is incident normally on the surface of a solar panel. Some part of incident energy (25%) is reflected from the surface and the rest is absorbed. The force exerted on 1m^(2) surface area will be close to (c=3xx10^(8)ms^(-1))

(a) Explain solar cell panel. (b) Give the principle of working of a windmill.

Define solar constant.

State the energy conversion taking place in a solar cell.

What is a solar cell? State two uses of solar cells. State whether solar cell produces a.c. or d.c. Give one disadvantage of using a solar cell.

Mention three advantages of a solar cell ?

What is solar cell panel ? Write some of its applications ?

An atchitect is working on a design for a solar power plant. While double-checking the blueprint, he realizes that he has made an error: The solar panels will not fit on the roof unless the dimensions of the roof are increased by 0.5%. Which of the following expresses this change in the dimensions of the roof as a fraction of the original dimensions?

The number of rooftops with solar panel installations in 5 cities is shown in the graph above. If the total number of installations is 27,500, what is an appropriate label for the vertical axis of the graph?