Science world Skip to main content

Posts

Highlights

Science: one of the army of our country

⚔️🔬 Science 🔬⚔️         The importance of science is well known today. Science is not just limited branch, it is very wide branch and extend study of the basics of science makes a new branch of science. For example, Biology is branch in which the study of living being occurred,  Chemistry the study of chemical, Microbiology the study of microorganisms, cell biology the study of all types of cell....etc....etc. But science does not seem to be as important as it should be. Now people understand that there is no alternative without science. Every one know that the science is a great career field, this is also a good education field, that's all there is to it. Still, we can say that ' Science is the one of the army of our country '. What is this nonsense....... How is that........ So let to prove this sentence, with evidence.... At first I would like to say that, we can't imagine the world without Science, because Science has given us ...

Units, fundamental quantities and derived quantities.

What mean by Units......? Unit is the basic part of the measurement, because without unit we don not measured anything. Unit:- The reference standard used for the measurement of a physical quantity is called a Unit. System of units:- C.G.S. M.K.S. F.P.S. S.I. units :-            Use of different system of units became very inconvenient for exchanging scientist information between different parts of the world.     Hence, in October 1960 at the Eleventh International General Conference of weights and measures, in Paris, a common system of units called  "System International d' Units"  was accepted.         This system of units called S.I. units consistent of seven fundamental units, two supplementary units and large number of derived units.      Units are classified into two  groups    F undamental units  and  Derived units . The s...

Measurements

Basic and Important term of  Physics Measurements           Physics is a basic discipline in the category of Natural Science which also includes other disciplines like Chemistry and Biology .  In Physics , we attempt to explain diverse physical phenomenon in term of few concepts and laws.           Basically there are two domain in the scope of Physics : Macroscopic and Microscopic . The Macroscopic includes phenomena at the laboratory, terrestrial and astronomical scales.  The macroscopic phenomena deals mainly with the branch of classical mechanics which includes subject like mechanics , electrodynamics, optics and thermodynamics.  The Microscopic domain includes atomic, molecular, and nuclear phenomena. The microscopic domain of physics deals with the constitution and structure of matter at the minute scale of atoms and nuclei and their interactions with electrons, photons ...

Acid and Base.

 * Acid and Base * Acid and Base are the concept of chemistry but in every day like it is important.  For example, after getting of more amount of lunch or dinner we says , 'enough, excess amount of food, produce acidity'. Some time stomach produce Gas at that time we get lemon drink, some time we get soda. This is common every day life use of acid and base. But the machanism behind this, stomach produce more amount of digestive liquid this liquid is acidic, for minimize this we get antacid or soda like basic component. What is acid?                              What is base ? And chemistry behind this let's start with acid. * Acid The word acid is derived from Latin word acidus . Acidus means Sour. The general taste of Acid is Sour. Acid definition ÷  The substance which produces  H+ ion in aqueuse Solution is called as Acid . Properties o...

Plant Cell and Animal Cell

🌴Plant cell and Animal cell🐂 The cell was Discovered by Robert Hook (1665). Plant cell and Animal cell  boths are  Eukaryotic cells . They have true and well developede Nucleus. Plant cell   and Animal cell have several similarities.  Plant cell ÷ * Plant cell diagram Plant cell is big than animal cell. Plant cell store energy in the form of starch. Plant cell have cell wall ,it's acts as a outer protective membrane ,support the cell and provide the shape of cell. They have large vacuole. Animal cell ÷ *Animal cell diagram  Animal cell is smaller than plant cell. Animal cell store energy in form of complex carbohydrate glyacogen. Animal cell do not have cell wall. They have small vacuole.

Type Of Cell

🎀 Type Of Cell 🎀 In past some articles are on cell theory, what is cell..? And other cell related concept we read.  all cells are same but the chemical structure and shape of cells are different in different organisms. The organization of the organizams depends upon the cell, because cell is the basic structural and functional unit of life. *There are Two Types of Cell ÷ Prokaryotic Cell. Eukaryotic Cell.  *Living organisms are grouped into two main categories, the Prokaryotes & Eukaryotes . The Prokaryotes have simple cellular organization. The Eukaryotes exhibit high degree of organization. Prokaryotic Cell -    Definition of Prokaryotic Cell- Pro means Primitive and Karyot means Nucleus. In simple words , the cell do not have well developed Nucleus is called Prokaryotic Cell. Structure of Prokaryotic Cell- The Prokaryotic Cell do not have True nucleus.  nuclear material is not bound by a definite nuclear mem...

Photoelectric effects

💫PHOTOELECTRIC EFFECTS 💫 * Photoelectric Effect Definition ÷  The phenomenon of emission of electrons by certain substance , when it is exposed to radiations of suitable frequency is called as " Photoelectric effect " " Photoelectric effect was discovered by Heinrich Rudolf Hertz in 1887" .    * Experimental study of Photoelectric Effect ÷ Aim : To verify the phenomenon of photoelectric effects.  Photoelectric effect apparatus : Evacuated glass tube having Quartz window, photo sensitive plate, metal plate, voltmeter, microammeter, commutator, battery. Photoelectric effect experimental setup {arrangement }: Observation  :  the Hertz experimental arrangement of photoelectric effect is shown in over above. Setup the apparatus complete the circuit as similar to the diagram .It consists of an evacuated tube having photosensitive plate 'C' and another metal plate 'A' .Monochromatic light from the source 'S...

Photo-electron

🌅PHOTO-ELECTRON🌅 * Photoelectrons ÷               "  The phenomenon of emission of electrons by certain substance , when it is exposed to radiations of suitable frequency is as Photoelectric effect and the emitted electrons are called Photoelectrons "  . Photoelectric effect is a one photon-one electron phenomenon.  One photon cannot eject more than one photoelectron . 'The  phenomenon of photoelectric emission ↖ύ was discovered by Heinrich Hertz {in 1887}'. Hertz and Lenard's discovered the photoelectric emission.  He observed that spark gap conducts electricity more easily when it is illuminated by ultraviolet(UV) light from arc lamp.  Hallwachs and Lenard investigated phenomenon of photoelectric emission in detail (1886-1902). *Science world*