sun's solar activity

The sun is at the center of the solar system. Its mass is about 740 times as great as that of all the planets combined. The huge mass of the sun creates the gravitation that keeps the other objects traveling around the sun in an orderly manne..

The sun is at the center of the solar system. Its mass is about 740 times as great as that of all the planets combined. The huge mass of the sun creates the gravitation that keeps the other objects traveling around the sun in an orderly manner. Sun ..

Sunlight falling on the earth's surface equals 50,000 times the energy used each year by man. Almost all our energy comes from sun. The sun's nuclear energy is responsible for the tidal energy, heat energy stored in water, the chemical energy stored in plants, and the kinetic en..

The Solar Energy - Sunlight falling on the earth's surface equals 50,000 times the energy used each year by man. Almost all our energy comes from sun. The sun's nuclear energy is responsible for the tidal energy, heat energy stored in water, the chemical energy stored ..

The Solar System - The solar system consists of the sun and all the objects that travel around it. The solar system includes the earth and eight other planets, along with the satellites (moons) that travel around most of them; planet like objects called aster..

Sun is the biggest source of non-conventional energy. Energy is in the form of photons. India receives abundant sunlight for about 250-300 days in a year. Conversion of solar energy to electric energy and thermal energy takes place mainly by solar thermal pathways and..

Solar cells convert light energy of the sun into electrical energy. They provide almost the complete power for required space crafts and artificial satellit..

The amount of solar energy received per second by one square metre of the near earth space (exposed perpendicularly to the rays of the sun) at an average distance between the sun and the earth is called solar constant. Solar constant = 1.4 kW/m 2 ..

A solar cooker contains a wooden box having thermocol lining from inside. A box made aluminium is placed inside the wooden box. The inner side of the aluminium box is painted black. The top is closed by a glass sheet. A plane mirror is fixed to the hinged lid. The box is closed such that ..

We know that energy falling in one second on the unit area of the earth's surface held normal to sun's rays is called solar constant S. Experimentally, S has been found to be equal to 1388 Wm - 2 . Let R be the radius of the sun and r be the radius of earth's orbit aro..