class boundary

An ecosystem can be defined as 'a structural and functional unit of biosphere or segment of nature consisting of community of living beings and the physical environment, both interacting and exchanging materials between them'. E. P. Odum, an American ecologist, defined ecology as, 'the study of the..

Low density and strength make it ideal for construction of aircraft, lightweight vehicles, and ladders. An alloy of aluminium called duralumin is often used instead of pure aluminium because of its improved properties. Easy shaping and corrosion resistance make it a good material for drink ..

Concept of Orbital - According to wave mechanics, we cannot simply say that the electron exists at a particular point but we talk about certain regions in space around the nucleus where the probability of finding the electron is maximum. Such regions are expressed by mathematical expressions and ar..

Initially water floats on top of the CuSO 4 solution as it is less dense. The boundary line very soon disappears and after a few hours the solution becomes a homogeneous pale blue color as shown in figure. The intermingling can be explained by describing the motion of molecules of water, ..

Sound waves can undergo reflection, refraction, interference and diffraction. But they cannot undergo polarization. Reflection of sound is evident in the environment in the form of echoes. The rolling of thunder is largely due to successive reflections from the clouds and land surfaces. For appre..

Parallel Plate Capacitors..

Verification of Snell's Law - Place a rectangular glass slab on a white sheet of paper fixed on a drawing board. Trace the boundary ABCD of the glass slab. Remove the glass slab and draw a normal N 1 N 2 at O. Draw a straight line IO inclined at an angle say 30 o with the normal. IO is th..

Even though all colors of the visible spectrum travel with the same speed in vacuum, the speed of the colors of the visible spectrum varies when they pass through a transparent medium like glass and water. That is, the refractive index of glass is different for different colors. Dispersion of White..

Let us now perform an experiment and find out how light gets refracted when it is incident on a rectangular glass slab. Place a rectangular glass slab on a white sheet of paper fixed on a drawing board. Trace the boundary ABCD of the glass slab. Remove the glass slab. Draw an inc..

Smallest unit of ecological hierarchy is the organism, while smallest and basic unit of taxonomic hierarchy is species. A group of individuals, having similar structural and functional characters, capable of potential interbreeding is termed as species. In nature all apecies exhibit cooperative and..