why do objects appear black

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 ..

Heat and Thermodynamics..

Here we consider a ray of light which is parallel to the principal axis and another ray which is passing through the centre of curvature. The ray which is passing through the centre of curvature retraces its path and the other ray which is parallel to the principal axis after reflection passes thr..

C 6 0 fullerene looks different from diamond and graphite. It is a yellow powdery substance, which turns pink on dissolution in solvents like toluene. It polymerizes on exposure to U.V. radiations. Fullerenes are fascinating because they show unusual characteristics and applications like: They ..

When natural gas is burnt in limited supply of air, the resulting soot is deposited on the underside of a revolving disc. This is carbon black and it is then scraped off and filled in bags. It differs from lamp black in being not so greasy. Carbon black is added to th..

Which figure would appear next? => Figure 1 or Figure 2..

Which figure appears next in the pattern? => Figure 2 or Figure 4 or Figure 1 or Figure 3..

Which of the figures appears to be a right triangle? => Figure 2 or Figure 4 or Figure 1 or Figure 3..

Which two figures appear to be congruent? => Figure 3 and Figure 1 or Figure 2 and Figure 4 or Figure 2 and Figure 3 or Figure 1 and Figure 2..

Which of the figures appear to be congruent? => Figure 1, Figure 2, and Figure 3 or Figure 1 and Figure 3 or Figure 2, Figure 3, and Figure 4 or Figure 3 and Figure 4..