convection cooking times

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 the inner ..

Solar Furnace This type can be used for cooking. But the time of cooking depends on the intensity of the sunlight and hence the time taken is shorter in the summer and longer in the winter. Rice, pulses and vegetables can be boiled by keeping them inside the ..

Father would have left by the time I reach home. India will have become a prosperous country by the end of this century. Scientists will not have found a means of walking in air even in another hundred years. Boys will be doing all the cooking fifty years from now. The ice..

o C under a low pressure. As one goes higher the atmospheric pressure decreases. At about 300 m above sea level water boils at 90 o C. Certain pulses cannot be properly cooked in the open in very high regions as the boiling point of water in these places is too low. These pulses can be ..

Solar Cells - Junction diodes are of many types and solar cells are one such. Its working is based on production of potential difference by sunlight. In other words, it is a junction diode that can convert light energy into electrical energy. In such a junction one of them either P or N is made thi..

Atmospheric refraction is the shift in apparent direction of a celestial object caused by the refraction of light rays as they pass through Earths atmosphere. The twinkling of stars and variation in size of the Sun are due to atmospheric refraction of starlight. Twinkling of Stars Do stars re..

Atmospheric Refraction - Atmospheric refraction is the shift in apparent direction of a celestial object caused by the refraction of light rays as they pass through Earths atmosphere. The twinkling of stars and variation in size of the Sun are due to atmospheric refraction of starlight. Twinkling o..

The heat and light energy emitted by the sun's radiation is called solar energy. Earth receives about 640 J of energy per second per square metre from the sun. The Sun's energy has two aspects. The 'heating effect' of sunlight, which is due to the infrared radiation present in the sun rays and the..

1. For drinking and for life processes. On an average, a man consumes about 60,000 to 80,000 litres of water in his lifetime. The body of an adult contains nearly 40 to 50 litres of water at any given time and water constitutes about 66% of the average body make up. Aqueous solutions fill..

Earth is an abundant source of material. Man has intensively studied the properties of these materials extensively and found new methods of using them. The air we breathe, the water we drink, stones and rocks, almost everything that is around us, are all useful to man for some purpose or the other...