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Sia ? 4 years, 6 months ago
There r mainly 4 basic forces are present which r -electromagnetic forces
- weak nuclear force
-strong nuclear force
-gravitatnal force
strong nuclear force = in such force the particle are kept close to each other and has short range. hence are not easy to separate easily. Its main job is to hold together the subatomic particles of the nucleus.
weak nuclear force = in such type of force the particles r kept at a large distance and has a large range. hence easy to separate them.it is the interaction that interacts on subatomic particle.
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Yogita Ingle 6 years, 7 months ago
| Hominoids | Hominids |
| Hominoids have smaller brain than hominids. | Hominids have bigger brain than hominoids. |
| Hominoids are quadrupeds,i.e., they walk on 4 feet. | Hominids have bipedal locomotion,i.e., they walk on 2 feet. |
| Hominoids have lesser hand evolution. | Hominids have more detailed evolution of hand. |
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Yogita Ingle 6 years, 7 months ago
Direct Sources: : Mining, drilling and volcanic eruption are examples of direct sources. During the process of mining and drilling rocks and minerals are extracted which gives information that there are layer system in the crust. Crust is made of many kinds of rocks and minerals. Volcanic eruption suggests that there is some zone inside the earth which is very hot and in liquid condition. Direct sources are not very reliable because mining and drilling can be done only up to some depth only.
Indirect Sources : Seismic waves, gravitational field, magnetic field, falling meteors etc are example of indirect sources. They are very important for know about earth‘s interior. Movement of seismic wave suggests that there are three layers in the earth and each layer has different density. Density increases toward the center of the earth. Movement of seismic wave suggests two things: a) There are three layers in the earth and b) Each layer has different density which increases toward the center of the earth.
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Yogita Ingle 6 years, 7 months ago
Quantum mechanics is based on a fundamental equation which is called Schrodinger equation.
The solutions to this equation give the values of E and Ψ.
Solving the equation gives us many values of E. But out of these values, only certain solutions are permitted. Each permitted solution is highly significant as it corresponds to a definite energy state. Thus, we can say that energy is quantized.
<div>That is, it can have only certain specific values.</div> <div>Ψ gives the amplitude of the wave. All the information about the electron in an atom is stored in Ψ which is called its wave function.
But the square of the amplitude, that is, Ψ2 gives us the region in which the probability of finding an electron is maximum. Ψ2 is called probability density.
This region of space around the nucleus where the probability of finding an electron is maximum is called an orbital.In an atom a large number of orbitals are permissible.
Each orbital is designated by a set of numbers known as quantum numbers
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Meghna Thapar 5 years, 4 months ago
Polysiphonia is a member of the order Ceramiales. The genus Polysiphonia derives its name from the polysiphonous nature of its thallus. The central siphon is surrounded by 4–24 pericentral siphons. Polysiphonia is commonly found as an epiphyte on plants and lithophyte on rocks in brackish estuaries in the intertidal and sublittoral regions. Most species prefer quiet waters whereas some are found in rough or even polluted waters. The filamentous thalli are brownish red to dark purple colored, highly branched and with a feathery appearance. Polysiphonia is a heterotrichous alga having an erect series of branches and a filamentous prostrate section attached to the substratum by means of unicellular rhizoids.
Posted by Tisha Arora 6 years, 8 months ago
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