Practice MCQ Questions and answers on Physics-GK

The alternative energy source which is exhaustible is geothermal energy.

Most non-renewable energy sources are fossil fuels: coal, petroleum, and natural gas. Carbon is the main element in fossil fuels. For this reason, the time period that fossil fuels formed (about 360-300 million years ago) is called the Carboniferous Period.

All of the above are renewable resource of energy.

A single solar cell can produce only a small amount of electricity. In those cases where more electrical power is needed, a large number of solar cells are joined in series. This group of solar cells is called a ‘solar cell panel’. Thus, a solar cell panel consists of a large number of solar cells joined together in a definite pattern.

Nuclear Power Plant uses a Non Renewable Energy Source.

Photovoltaic modules, commonly called solar modules, are the key components used to convert sunlight into electricity. Light striking the crystals induces the “photovoltaic effect,” which generates electricity. The electricity produced is called direct current (DC) and can be used immediately or stored in a battery.

Wind and solar energy are examples of renewable sources of energy.

Originally designed for recovery of valuable industrial-process materials, electrostatic precipitators are used for air pollution control, particularly for removing particles from waste gases at industrial facilities and power-generating stations.

Hydro-electric power is a renewable natural resource.

Energy that is produced commercially from coal is called thermal energy.