black light book

. Another natural phenomenon related to the scattering of light is the red appearance of the sun at the sunset and sunrise. At these times the sunlight has to travel a large distance through the atmosphere. The blue and the neighboring colors are scattered away and the red light..

When colored light is incident on a white object it does not absorb any color and the light falling on it is reflected. If colored light is incident on a colored object it absorbs the light and the object appears black as no color is reflecte..

Pupil is the small circular opening of iris. The pupil appears black because no light is reflected from it. The iris regulates the amount of light entering the eye by adjusting the size of the pup..

In 1900, Max Planck presented the results of his famous black body radiation experiments, which showed that light has a dual character, behaving like a particle as well as a wave. He gave the Quantum Theory of Radiation explaining electromagnetic radiation and energ..

As light is transverse in character, all directions of vibrations of electric vector in the unpolarised light are confined to the XY plane. While looking along the X axis, vibrations of electric vector parallel to Y axis are seen and similarly along y axis. Hence light..

>o C and then taken out suddenly in a dark room, the decorations appear much brighter than white china. The decorations are better absorbers and, therefore, also better emitters. A platinum coated black spot on a heated metal ball shines more brilliantly than the polished surface. A green..

Color of Transparent Objects - Any object which allows light to pass through it is known as a transparent object. The color of any transparent object is the color of the light transmitted by it. Ordinary window glass appears white because it allows all the colors in the white ..

Poultry - Poultry includes all domestic birds - chicken, ducks, geese and turkey. They are reared for their meat and eggs. Poultry farming in India has made rapid strides as poultry management is being done on scientific lines. The three indigenous breeds of fowls are Arlee or Indian Game (provides..

1. The parents of these students do not place much importance on education. At the least provocation, they take the children out of school. Girl students are especially vulnerable. For them the household chores - carrying water, looking after siblings and marriage are considered more important. 2...

Physical and Chemical Changes Matter undergoes certain changes as a result of the application of energy. Water from saltpans on the seacoast dry up, leaving behind salt; water from the sea evaporates to from water vapour, which convert into clouds and then condense to form rain. Glaciers melt i..